Common Weakness Enumeration
CWE-405
Allowed-with-ReviewAsymmetric Resource Consumption (Amplification)
Abstraction: Class · Status: Incomplete
The product does not properly control situations in which an adversary can cause the product to consume or produce excessive resources without requiring the adversary to invest equivalent work or otherwise prove authorization, i.e., the adversary's influence is "asymmetric."
124 vulnerabilities reference this CWE, most recent first.
CVE-2026-104817 (GCVE-0-2026-104817)
Vulnerability from cvelistv5 – Published: 2026-10-13 18:39 – Updated: 2026-10-13 19:04
VLAI
EPSS
VEX
Title
Misskey: Lack of rate limiting and size restrictions in RSS fetching API
Summary
Misskey is an open source, federated social media platform. From 12.112.1 until 2026.7.0, the unauthenticated fetch-rss API lacks rate limiting and response-size restrictions and performs synchronous XML parsing. An attacker can trigger unbounded outbound HTTP requests and synchronous parsing, exhausting instance resources, amplifying requests toward third-party servers, or probing network-reachable services even when federation is disabled. This issue is fixed in version 2026.7.0.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 19:03 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/misskey-dev/misskey/security/a… | x_refsource_CONFIRM |
| https://github.com/misskey-dev/misskey/commit/a12… | x_refsource_MISC |
| https://github.com/misskey-dev/misskey/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| misskey-dev | misskey |
Affected:
>= 12.0.0, <= 13.14.2
Affected: >= 2023.9.0-beta.1, < 2026.7.0 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104817",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-13T19:03:52.462592Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T19:04:03.012Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "misskey",
"vendor": "misskey-dev",
"versions": [
{
"status": "affected",
"version": "\u003e= 12.0.0, \u003c= 13.14.2"
},
{
"status": "affected",
"version": "\u003e= 2023.9.0-beta.1, \u003c 2026.7.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Misskey is an open source, federated social media platform. From 12.112.1 until 2026.7.0, the unauthenticated fetch-rss API lacks rate limiting and response-size restrictions and performs synchronous XML parsing. An attacker can trigger unbounded outbound HTTP requests and synchronous parsing, exhausting instance resources, amplifying requests toward third-party servers, or probing network-reachable services even when federation is disabled. This issue is fixed in version 2026.7.0."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:N/SA:L",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405: Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T18:39:30.169Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-4x7v-qx8f-g3p8",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-4x7v-qx8f-g3p8"
},
{
"name": "https://github.com/misskey-dev/misskey/commit/a12ee2e5d72c40252e11a164b2231667c9697667",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/misskey-dev/misskey/commit/a12ee2e5d72c40252e11a164b2231667c9697667"
},
{
"name": "https://github.com/misskey-dev/misskey/releases/tag/2026.7.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/misskey-dev/misskey/releases/tag/2026.7.0"
}
],
"source": {
"advisory": "GHSA-4x7v-qx8f-g3p8",
"discovery": "UNKNOWN"
},
"title": "Misskey: Lack of rate limiting and size restrictions in RSS fetching API"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-104817",
"datePublished": "2026-10-13T18:39:30.169Z",
"dateReserved": "2026-10-02T14:17:09.334Z",
"dateUpdated": "2026-10-13T19:04:03.012Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-104712 (GCVE-0-2026-104712)
Vulnerability from cvelistv5 – Published: 2026-10-05 18:35 – Updated: 2026-10-06 14:10
VLAI
EPSS
VEX
Title
Apache Struts: Disproportionate response size when rendering BigDecimal request parameters
Summary
Asymmetric resource consumption (amplification) vulnerability in Apache Struts. When a request parameter is bound to an arbitrary-precision decimal (java.math.BigDecimal) property that is then rendered through the Struts tag library, the framework can produce a response many orders of magnitude larger than the request, allowing an unauthenticated remote attacker to exhaust server CPU and outbound network capacity with sustained low-volume traffic. Applications that do not bind request parameters to BigDecimal properties, or never render such a property through the Struts tag library, are not affected.
This issue affects Apache Struts: from 2.5.14 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.
Users are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 14:09 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cwiki.apache.org/confluence/display/WW/S2-076 | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Struts |
Affected:
2.5.14 , ≤ 2.5.33
(semver)
Affected: 6.0.0 , ≤ 6.11.0 (semver) Affected: 7.0.0 , ≤ 7.3.0 (semver) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-10-05T19:08:41.655Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/10/05/11"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-104712",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-06T14:09:49.658503Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-06T14:10:31.329Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected",
"packageName": "org.apache.struts:struts2-core",
"packageURL": "pkg:maven/org.apache.struts/struts2-core",
"product": "Apache Struts",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "2.5.33",
"status": "affected",
"version": "2.5.14",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.0",
"status": "affected",
"version": "6.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.3.0",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "0xCc.zhang"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Asymmetric resource consumption (amplification) vulnerability in Apache Struts. When a request parameter is bound to an arbitrary-precision decimal (java.math.BigDecimal) property that is then rendered through the Struts tag library, the framework can produce a response many orders of magnitude larger than the request, allowing an unauthenticated remote attacker to exhaust server CPU and outbound network capacity with sustained low-volume traffic. Applications that do not bind request parameters to BigDecimal properties, or never render such a property through the Struts tag library, are not affected.\u003cbr\u003e\u003cbr\u003eThis issue affects Apache Struts: from 2.5.14 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.\u003cbr\u003e\u003cbr\u003eUsers are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue."
}
],
"value": "Asymmetric resource consumption (amplification) vulnerability in Apache Struts. When a request parameter is bound to an arbitrary-precision decimal (java.math.BigDecimal) property that is then rendered through the Struts tag library, the framework can produce a response many orders of magnitude larger than the request, allowing an unauthenticated remote attacker to exhaust server CPU and outbound network capacity with sustained low-volume traffic. Applications that do not bind request parameters to BigDecimal properties, or never render such a property through the Struts tag library, are not affected.\n\nThis issue affects Apache Struts: from 2.5.14 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.\n\nUsers are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue."
}
],
"metrics": [
{
"other": {
"content": {
"text": "moderate"
},
"type": "Textual description of severity"
},
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405 Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T18:35:41.767Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://cwiki.apache.org/confluence/display/WW/S2-076"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Apache Struts: Disproportionate response size when rendering BigDecimal request parameters",
"x_generator": {
"engine": "Vulnogram 1.0.3"
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2026-104712",
"datePublished": "2026-10-05T18:35:41.767Z",
"dateReserved": "2026-10-02T10:54:11.636Z",
"dateUpdated": "2026-10-06T14:10:31.329Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-104431 (GCVE-0-2026-104431)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-02 14:53
VLAI
EPSS
VEX
Title
Zebra before 6.0.0 Denial of Service via Synchronous Script FFI Verification
Summary
Zebra before 6.0.0 contains a denial of service vulnerability that allows unauthenticated peers to stall Tokio workers by submitting mempool transactions requiring expensive synchronous script verification. Attackers can send non-standard high-sigop P2SH transactions that reach CachedFfiTransaction::is_valid() before standardness checks, saturating the verifier buffer and rendering the node unresponsive.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 14:53 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/zebra-before… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
0 , < 6.0.0
(semver)
Unaffected: 6.0.0 (semver) cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* |
Date Public
2026-07-13 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104431",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-02T14:53:45.702420Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T14:53:54.651Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:cargo/zebrad",
"product": "zebra",
"vendor": "ZcashFoundation",
"versions": [
{
"lessThan": "6.0.0",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "ouicate"
},
{
"lang": "en",
"type": "finder",
"value": "conradoplg"
}
],
"datePublic": "2026-07-13T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Zebra before 6.0.0 contains a denial of service vulnerability that allows unauthenticated peers to stall Tokio workers by submitting mempool transactions requiring expensive synchronous script verification. Attackers can send non-standard high-sigop P2SH transactions that reach CachedFfiTransaction::is_valid() before standardness checks, saturating the verifier buffer and rendering the node unresponsive."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T11:38:10.560Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-84j3-rw4c-gqmj)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-84j3-rw4c-gqmj"
},
{
"name": "VulnCheck Advisory: Zebra before 6.0.0 Denial of Service via Synchronous Script FFI Verification",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/zebra-before-6.0.0-denial-of-service-via-synchronous-script-ffi-verification"
}
],
"title": "Zebra before 6.0.0 Denial of Service via Synchronous Script FFI Verification",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-104431",
"datePublished": "2026-10-02T11:38:10.560Z",
"dateReserved": "2026-10-02T00:50:26.603Z",
"dateUpdated": "2026-10-02T14:53:54.651Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-104425 (GCVE-0-2026-104425)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-02 15:35
VLAI
EPSS
VEX
Title
Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions
Summary
ZcashFoundation Zebra before 6.1.0 contains a resource exhaustion vulnerability that allows unauthenticated peers to degrade block processing by pushing transactions with invalid Orchard proofs without being misbehavior-scored. Attackers can repeatedly push invalid proofs into the shared halo2 batch verifier, forcing honest block proofs onto the slow individual-verification path and slowing block processing roughly sevenfold.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 15:34 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/zebra-before… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
0 , < 6.1.0
(semver)
Unaffected: 6.1.0 (semver) cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* |
Date Public
2026-07-17 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104425",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-02T15:34:04.808428Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T15:35:22.404Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:cargo/zebrad",
"product": "zebra",
"vendor": "ZcashFoundation",
"versions": [
{
"lessThan": "6.1.0",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "ValarDragon"
},
{
"lang": "en",
"type": "reporter",
"value": "ebfull"
},
{
"lang": "en",
"type": "finder",
"value": "upbqdn"
}
],
"datePublic": "2026-07-17T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "ZcashFoundation Zebra before 6.1.0 contains a resource exhaustion vulnerability that allows unauthenticated peers to degrade block processing by pushing transactions with invalid Orchard proofs without being misbehavior-scored. Attackers can repeatedly push invalid proofs into the shared halo2 batch verifier, forcing honest block proofs onto the slow individual-verification path and slowing block processing roughly sevenfold."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T11:38:06.504Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-g7c4-2w6c-cr3r)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-g7c4-2w6c-cr3r"
},
{
"name": "VulnCheck Advisory: Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/zebra-before-6.1.0-batch-verification-poisoning-dos-via-unattributed-pushed-transactions"
}
],
"title": "Zebra before 6.1.0 Batch-Verification Poisoning DoS via Unattributed Pushed Transactions",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-104425",
"datePublished": "2026-10-02T11:38:06.504Z",
"dateReserved": "2026-10-02T00:46:23.830Z",
"dateUpdated": "2026-10-02T15:35:22.404Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-104423 (GCVE-0-2026-104423)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-02 15:55
VLAI
EPSS
VEX
Title
Zebra before 6.2.1 Denial of Service via Uncapped V6 Shielded Proof Verification
Summary
Zebra (zebrad) before 6.2.1 contains an asymmetric resource consumption vulnerability that allows unauthenticated peers to stall block verification by pushing V6 mempool transactions with invalid Halo2 proofs. Attackers can flood the shared unprioritized Halo2 verification queue with zero-fee transactions carrying zero-filled Orchard and Ironwood proofs, causing nodes to fall behind the chain tip.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 15:55 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ZcashFoundation/zebra/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/zebra-before… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ZcashFoundation | zebra |
Affected:
0 , < 6.2.1
(semver)
Unaffected: 6.2.1 (semver) cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* |
Date Public
2026-08-17 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-104423",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-02T15:55:46.130893Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T15:55:54.144Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:cargo/zebrad",
"product": "zebra",
"vendor": "ZcashFoundation",
"versions": [
{
"lessThan": "6.2.1",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.2.1",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.2.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "craftsoldier"
},
{
"lang": "en",
"type": "finder",
"value": "conradoplg"
},
{
"lang": "en",
"type": "finder",
"value": "upbqdn"
}
],
"datePublic": "2026-08-17T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Zebra (zebrad) before 6.2.1 contains an asymmetric resource consumption vulnerability that allows unauthenticated peers to stall block verification by pushing V6 mempool transactions with invalid Halo2 proofs. Attackers can flood the shared unprioritized Halo2 verification queue with zero-fee transactions carrying zero-filled Orchard and Ironwood proofs, causing nodes to fall behind the chain tip."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T11:38:05.140Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-2p4c-3q4q-p463)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-2p4c-3q4q-p463"
},
{
"name": "VulnCheck Advisory: Zebra before 6.2.1 Denial of Service via Uncapped V6 Shielded Proof Verification",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/zebra-before-6.2.1-denial-of-service-via-uncapped-v6-shielded-proof-verification"
}
],
"title": "Zebra before 6.2.1 Denial of Service via Uncapped V6 Shielded Proof Verification",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-104423",
"datePublished": "2026-10-02T11:38:05.140Z",
"dateReserved": "2026-10-02T00:46:23.830Z",
"dateUpdated": "2026-10-02T15:55:54.144Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-103880 (GCVE-0-2026-103880)
Vulnerability from cvelistv5 – Published: 2026-10-02 10:03 – Updated: 2026-10-05 18:47
VLAI
EPSS
VEX
Title
Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords
Summary
Asymmetric Resource Consumption vulnerability in Apache Directory LDAP API.
Storing a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.
This issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.
Users are recommended to upgrade to version 2.1.9, which fixes the issue.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 18:46 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Directory LDAP API |
Affected:
2.1.0 , < 2.1.9
(semver)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-10-02T21:07:23.392Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/10/02/7"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-103880",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-05T18:46:46.577864Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-05T18:47:17.198Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected",
"packageName": "org.apache.directory.api:api-ldap-model",
"packageURL": "pkg:maven/org.apache.directory.api/api-ldap-model",
"product": "Apache Directory LDAP API",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThan": "2.1.9",
"status": "affected",
"version": "2.1.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "tool",
"value": "Claude Security"
},
{
"lang": "en",
"type": "finder",
"value": "The Apache Software Foundation"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eAsymmetric Resource Consumption\u0026nbsp;vulnerability in Apache Directory LDAP API.\u003c/p\u003e\u003cp\u003eStoring a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to\u0026nbsp; run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 2.1.9, which fixes the issue.\u003c/p\u003e"
}
],
"value": "Asymmetric Resource Consumption\u00a0vulnerability in Apache Directory LDAP API.\n\n\n\nStoring a password using the bcrypt algorithm with a high force like 30 in a LDAP server that supports this algorithm will cause the server CPU to\u00a0 run for hours checking the credentials. A bounded cost should be enforced to avoid a server DOS.\n\n\n\nThis issue affects Apache Directory LDAP API: from 2.1.0 before 2.1.9.\n\n\n\nUsers are recommended to upgrade to version 2.1.9, which fixes the issue."
}
],
"metrics": [
{
"other": {
"content": {
"text": "important"
},
"type": "Textual description of severity"
},
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405 Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-02T10:03:48.296Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://lists.apache.org/thread.html/39q63m54v9go6xj7pqj7q18c3szn9go4"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Apache Directory LDAP API: Denial of service via excessive bcrypt cost factor in stored passwords",
"x_generator": {
"engine": "Vulnogram 1.0.3"
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2026-103880",
"datePublished": "2026-10-02T10:03:48.296Z",
"dateReserved": "2026-10-01T13:05:10.819Z",
"dateUpdated": "2026-10-05T18:47:17.198Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-96960 (GCVE-0-2026-96960)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-14 17:59
VLAI
EPSS
VEX
Title
.NET Denial of Service Vulnerability
Summary
Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 19:37 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft .NET Framework 3.5 |
Affected:
3.5.0 , < 2.0.50727.9188 AND 3.0.30729.9171
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 |
Affected:
3.0.0.0 , < 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.7.2 |
Affected:
4.7.0 , < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8 |
Affected:
4.8.0 , < 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 3.5 AND 4.8.1 |
Affected:
4.8.1 , < 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 |
Affected:
4.7.0 , < 4.7.4150.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8 |
Affected:
4.8.0 , < 4.8.4811.0
(custom)
|
|
| Microsoft | Microsoft .NET Framework 4.8.1 |
Affected:
4.8.0.0 , < 4.8.9363.0
(custom)
|
|
| Microsoft | System.Security.Cryptography.Xml |
Affected:
10.0.0 , < 10.0.13
(custom)
|
Date Public
2026-10-13 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-96960",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-13T19:37:53.830470Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-13T19:41:47.425Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"Windows 11 version 26H1",
"Windows Server 2012",
"Windows Server 2012 R2"
],
"product": "Microsoft .NET Framework 3.5",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.0.50727.9188 AND 3.0.30729.9171",
"status": "affected",
"version": "3.5.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 10 version 1607",
"Windows Server 2016",
"Windows Server 2019"
],
"product": "Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0",
"status": "affected",
"version": "3.0.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 10 version 1809"
],
"product": "Microsoft .NET Framework 3.5 AND 4.7.2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
"status": "affected",
"version": "4.7.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 10 version 1809",
"Windows 10 version 21H2",
"Windows 10 version 22H2",
"Windows Server 2019",
"Windows Server 2022"
],
"product": "Microsoft .NET Framework 3.5 AND 4.8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0",
"status": "affected",
"version": "4.8.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 10 version 21H2",
"Windows 10 version 22H2",
"Windows 11 version 23H2",
"Windows 11 version 24H2",
"Windows 11 version 25H2",
"Windows 11 version 26H2",
"Windows Server 2022",
"Windows Server 2025"
],
"product": "Microsoft .NET Framework 3.5 AND 4.8.1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
"status": "affected",
"version": "4.8.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows Server 2012",
"Windows Server 2012 R2"
],
"product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "4.7.4150.0",
"status": "affected",
"version": "4.7.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 10 version 1607",
"Windows Server 2012",
"Windows Server 2012 R2",
"Windows Server 2016"
],
"product": "Microsoft .NET Framework 4.8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "4.8.4811.0",
"status": "affected",
"version": "4.8.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"Windows 11 version 26H1"
],
"product": "Microsoft .NET Framework 4.8.1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "4.8.9363.0",
"status": "affected",
"version": "4.8.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
".NET 10.0 installed on Linux",
".NET 10.0 installed on Mac OS",
".NET 10.0 installed on Windows",
".NET 11.0 installed on Linux",
".NET 11.0 installed on Mac OS",
".NET 11.0 installed on Windows",
".NET 8.0 installed on Linux",
".NET 8.0 installed on Mac OS",
".NET 8.0 installed on Windows",
".NET 9.0 installed on Linux",
".NET 9.0 installed on Mac OS",
".NET 9.0 installed on Windows"
],
"product": "System.Security.Cryptography.Xml",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.13",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:system.security.cryptography.xml:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.13",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.50727.9188 AND 3.0.30729.9171",
"versionStartIncluding": "3.5.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0",
"versionStartIncluding": "3.0.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0",
"versionStartIncluding": "4.7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0",
"versionStartIncluding": "4.8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.7.4150.0",
"versionStartIncluding": "4.7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.8.4811.0",
"versionStartIncluding": "4.8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0",
"versionStartIncluding": "4.8.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.8.9363.0",
"versionStartIncluding": "4.8.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-10-13T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405: Asymmetric Resource Consumption (Amplification)",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-14T17:59:28.677Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": ".NET Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96960"
}
],
"title": ".NET Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-96960",
"datePublished": "2026-10-13T19:01:27.400Z",
"dateReserved": "2026-09-23T20:35:19.929Z",
"dateUpdated": "2026-10-14T17:59:28.677Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-87011 (GCVE-0-2026-87011)
Vulnerability from cvelistv5 – Published: 2026-09-09 20:54 – Updated: 2026-09-14 13:42
VLAI
EPSS
VEX
Title
Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout
Summary
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/open_webui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout token. Each request repeated uncached network fetches, and the signing-key lookup blocked the async event loop, so requests carrying invalid tokens could stall the single-worker instance and amplify traffic to the identity provider when ENABLE_OAUTH_BACKCHANNEL_LOGOUT was enabled. This issue is fixed in version 0.11.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 13:41 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/open-webui/open-webui/security… | x_refsource_CONFIRM |
| https://github.com/open-webui/open-webui/commit/a… | x_refsource_MISC |
| https://github.com/open-webui/open-webui/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-webui | open-webui |
Affected:
>= 0.9.0, < 0.11.1
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-87011",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-14T13:41:36.439676Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T13:42:35.435Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-3g9q-v48f-hh9w"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "open-webui",
"vendor": "open-webui",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.9.0, \u003c 0.11.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/open_webui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout token. Each request repeated uncached network fetches, and the signing-key lookup blocked the async event loop, so requests carrying invalid tokens could stall the single-worker instance and amplify traffic to the identity provider when ENABLE_OAUTH_BACKCHANNEL_LOGOUT was enabled. This issue is fixed in version 0.11.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405: Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-09T20:54:26.207Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/open-webui/open-webui/security/advisories/GHSA-3g9q-v48f-hh9w",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-3g9q-v48f-hh9w"
},
{
"name": "https://github.com/open-webui/open-webui/commit/aeda6ff13a25d3b3ba1b303609f35382db22142c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-webui/open-webui/commit/aeda6ff13a25d3b3ba1b303609f35382db22142c"
},
{
"name": "https://github.com/open-webui/open-webui/releases/tag/v0.11.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/open-webui/open-webui/releases/tag/v0.11.1"
}
],
"source": {
"advisory": "GHSA-3g9q-v48f-hh9w",
"discovery": "UNKNOWN"
},
"title": "Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-87011",
"datePublished": "2026-09-09T20:54:26.207Z",
"dateReserved": "2026-09-08T16:44:23.783Z",
"dateUpdated": "2026-09-14T13:42:35.435Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-86432 (GCVE-0-2026-86432)
Vulnerability from cvelistv5 – Published: 2026-09-07 12:53 – Updated: 2026-10-08 15:25
VLAI
EPSS
VEX
Title
commonmark 2.0.0 before 2.8.4 Denial of Service via XML
Summary
commonmark versions from 2.0.0 before 2.8.4 contain a denial of service vulnerability in XmlRenderer that emits depth-proportional indentation for every XML tag. Attackers can provide deeply nested Markdown or AST structures to cause quadratic memory consumption and output amplification, exhausting server resources.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:22 UTC
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/thephpleague/commonmark/securi… | vendor-advisory |
| https://www.vulncheck.com/advisories/commonmark-2… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| thephpleague | commonmark |
Affected:
2.0.0 , < 2.8.4
(semver)
Unaffected: 2.8.4 (semver) cpe:2.3:a:thephpleague:commonmark:*:*:*:*:*:*:*:* |
Date Public
2026-08-03 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-86432",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-10T14:22:38.482490Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-10T15:04:06.858Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageURL": "pkg:composer/league/commonmark",
"product": "commonmark",
"vendor": "thephpleague",
"versions": [
{
"lessThan": "2.8.4",
"status": "affected",
"version": "2.0.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.8.4",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:thephpleague:commonmark:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.8.4",
"versionStartIncluding": "2.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "GrahamCampbell"
}
],
"datePublic": "2026-08-03T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "commonmark versions from 2.0.0 before 2.8.4 contain a denial of service vulnerability in XmlRenderer that emits depth-proportional indentation for every XML tag. Attackers can provide deeply nested Markdown or AST structures to cause quadratic memory consumption and output amplification, exhausting server resources."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-08T15:25:53.380Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "GitHub Security Advisory (GHSA-mj63-m3rc-8ppr)",
"tags": [
"vendor-advisory"
],
"url": "https://github.com/thephpleague/commonmark/security/advisories/GHSA-mj63-m3rc-8ppr"
},
{
"name": "VulnCheck Advisory: commonmark 2.0.0 before 2.8.4 Denial of Service via XML",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/commonmark-2.0.0-before-2.8.4-denial-of-service-via-xml"
}
],
"title": "commonmark 2.0.0 before 2.8.4 Denial of Service via XML",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-86432",
"datePublished": "2026-09-07T12:53:51.897Z",
"dateReserved": "2026-09-07T12:34:31.457Z",
"dateUpdated": "2026-10-08T15:25:53.380Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-84897 (GCVE-0-2026-84897)
Vulnerability from cvelistv5 – Published: 2026-10-07 02:42 – Updated: 2026-10-07 18:37
VLAI
EPSS
VEX
Title
wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion
Summary
src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSH_MSG_KEX_DH_GEX_GROUP (31) and SSH_MSG_KEX_DH_GEX_REPLY (33) when a server receives them from an unauthenticated client. IsMessageAllowedServer() applies no direction check to the key exchange message range: when the peer is keying and no particular message is expected, which is the state a server is in for the whole window after it processes the client's KEXINIT because nothing sets handshake->expectMsgId there, the function falls out of its expectation branch without a verdict and reaches a numeric bound that admits every message id from 30 through 34. A client that negotiates diffie-hellman-group-exchange-sha256 and then sends message 31 makes the server run the client-side handler DoKexDhGexGroup(), which validates the attacker-supplied group with two 8-round Miller-Rabin primality tests, one on p and one on (p-1)/2, on a value of up to 8192 bits. The handler then returns success: the server stores the attacker's prime and generator, generates a Diffie-Hellman key pair in the attacker's group, and sends the client-role message SSH_MSG_KEX_DH_GEX_INIT (32) back to the attacker. Published RFC 3526 safe primes are the worst-case input and cost the attacker nothing to obtain. The primality validation was added in 1.5.0; versions from 1.2.0 through 1.4.22 admit the same message and enter the same client-role path without the primality cost. Message 33 is admitted as well, but on a server it is rejected before any cryptography because no public key check callback is registered, so it carries no comparable cost. Builds that define WOLFSSH_NO_DH_GEX_SHA256, which is implied by WOLFSSH_NO_DH or NO_SHA256, are unaffected.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 18:36 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/wolfSSL/wolfssh/pull/1221 | patch |
| https://github.com/wolfSSL/wolfssh/commit/a472f1e… | patch |
| https://www.rfc-editor.org/rfc/rfc4419.html | technical-description |
| https://www.rfc-editor.org/rfc/rfc3526.html | technical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wolfSSL Inc. | wolfSSH |
Affected:
1.2.0 , ≤ 1.5.0
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-84897",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-07T18:36:45.750446Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T18:37:00.316Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"key exchange"
],
"product": "wolfSSH",
"programFiles": [
"src/internal.c"
],
"programRoutines": [
{
"name": "IsMessageAllowedServer"
},
{
"name": "DoKexDhGexGroup"
},
{
"name": "ValidateKexDhGexGroup"
}
],
"repo": "https://github.com/wolfSSL/wolfssh",
"vendor": "wolfSSL Inc.",
"versions": [
{
"changes": [
{
"at": "1.6.0",
"status": "unaffected"
}
],
"lessThanOrEqual": "1.5.0",
"status": "affected",
"version": "1.2.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Abdullah Al Ishtiaq, Kai Tu, Matthew Carter, Xiaotian Zhou, Ananna Rahman, Yilu Dong, Tianwei Yu, Ali Ranjbar, Syed Rafiul Hussain"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003ccode\u003esrc/internal.c\u003c/code\u003e in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages \u003ccode\u003eSSH_MSG_KEX_DH_GEX_GROUP\u003c/code\u003e (31) and \u003ccode\u003eSSH_MSG_KEX_DH_GEX_REPLY\u003c/code\u003e (33) when a server receives them from an unauthenticated client. \u003ccode\u003eIsMessageAllowedServer()\u003c/code\u003e applies no direction check to the key exchange message range: when the peer is keying and no particular message is expected, which is the state a server is in for the whole window after it processes the client\u0027s KEXINIT because nothing sets \u003ccode\u003ehandshake-\u0026gt;expectMsgId\u003c/code\u003e there, the function falls out of its expectation branch without a verdict and reaches a numeric bound that admits every message id from 30 through 34. A client that negotiates \u003ccode\u003ediffie-hellman-group-exchange-sha256\u003c/code\u003e and then sends message 31 makes the server run the client-side handler \u003ccode\u003eDoKexDhGexGroup()\u003c/code\u003e, which validates the attacker-supplied group with two 8-round Miller-Rabin primality tests, one on \u003ccode\u003ep\u003c/code\u003e and one on \u003ccode\u003e(p-1)/2\u003c/code\u003e, on a value of up to 8192 bits. The handler then returns success: the server stores the attacker\u0027s prime and generator, generates a Diffie-Hellman key pair in the attacker\u0027s group, and sends the client-role message \u003ccode\u003eSSH_MSG_KEX_DH_GEX_INIT\u003c/code\u003e (32) back to the attacker. Published RFC 3526 safe primes are the worst-case input and cost the attacker nothing to obtain. The primality validation was added in 1.5.0; versions from 1.2.0 through 1.4.22 admit the same message and enter the same client-role path without the primality cost. Message 33 is admitted as well, but on a server it is rejected before any cryptography because no public key check callback is registered, so it carries no comparable cost. Builds that define \u003ccode\u003eWOLFSSH_NO_DH_GEX_SHA256\u003c/code\u003e, which is implied by \u003ccode\u003eWOLFSSH_NO_DH\u003c/code\u003e or \u003ccode\u003eNO_SHA256\u003c/code\u003e, are unaffected.\u003cbr\u003e"
}
],
"value": "src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSH_MSG_KEX_DH_GEX_GROUP (31) and SSH_MSG_KEX_DH_GEX_REPLY (33) when a server receives them from an unauthenticated client. IsMessageAllowedServer() applies no direction check to the key exchange message range: when the peer is keying and no particular message is expected, which is the state a server is in for the whole window after it processes the client\u0027s KEXINIT because nothing sets handshake-\u003eexpectMsgId there, the function falls out of its expectation branch without a verdict and reaches a numeric bound that admits every message id from 30 through 34. A client that negotiates diffie-hellman-group-exchange-sha256 and then sends message 31 makes the server run the client-side handler DoKexDhGexGroup(), which validates the attacker-supplied group with two 8-round Miller-Rabin primality tests, one on p and one on (p-1)/2, on a value of up to 8192 bits. The handler then returns success: the server stores the attacker\u0027s prime and generator, generates a Diffie-Hellman key pair in the attacker\u0027s group, and sends the client-role message SSH_MSG_KEX_DH_GEX_INIT (32) back to the attacker. Published RFC 3526 safe primes are the worst-case input and cost the attacker nothing to obtain. The primality validation was added in 1.5.0; versions from 1.2.0 through 1.4.22 admit the same message and enter the same client-role path without the primality cost. Message 33 is admitted as well, but on a server it is rejected before any cryptography because no public key check callback is registered, so it carries no comparable cost. Builds that define WOLFSSH_NO_DH_GEX_SHA256, which is implied by WOLFSSH_NO_DH or NO_SHA256, are unaffected."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Pre-authentication CPU exhaustion with a high work-per-byte ratio, plus key exchange role confusion. One unauthenticated packet of roughly 1 KB costs a wolfSSH server about 0.48 seconds of single-core CPU when it carries the 4096-bit RFC 3526 safe prime, and about 5.8 seconds when it carries the 8192-bit one, measured on a 64-bit desktop core; a single-threaded or embedded server is unavailable for that whole interval, and the cost repeats on every connection. The server then stores the attacker-chosen group, generates a Diffie-Hellman key pair in it, and sends the client-role message SSH_MSG_KEX_DH_GEX_INIT back to the attacker, so the key exchange continues in the wrong role until it fails. Reaching the 8192-bit case requires a wolfSSL math configuration that can represent an 8192-bit integer; a default build tops out near 4096 bits and caps the burn at roughly half a second."
}
]
},
{
"capecId": "CAPEC-227",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-227 Sustained Client Engagement"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "YES",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/AU:Y",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-372",
"description": "CWE-372 Incomplete Internal State Distinction",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-405",
"description": "CWE-405 Asymmetric Resource Consumption (Amplification)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400 Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-07T02:42:28.388Z",
"orgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
"shortName": "wolfSSL"
},
"references": [
{
"name": "Fix PR #1221",
"tags": [
"patch"
],
"url": "https://github.com/wolfSSL/wolfssh/pull/1221"
},
{
"name": "Fix commit a472f1ee (reject the KEX replies a server never receives)",
"tags": [
"patch"
],
"url": "https://github.com/wolfSSL/wolfssh/commit/a472f1ee2b653f623d85ef2297321733f1dbfd22"
},
{
"name": "RFC 4419 sections 3 and 5 (SSH_MSG_KEX_DH_GEX_GROUP and SSH_MSG_KEX_DH_GEX_REPLY are sent by the server)",
"tags": [
"technical-description"
],
"url": "https://www.rfc-editor.org/rfc/rfc4419.html"
},
{
"name": "RFC 3526 (published MODP safe primes usable as the worst-case input)",
"tags": [
"technical-description"
],
"url": "https://www.rfc-editor.org/rfc/rfc3526.html"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Build wolfSSH with \u003ccode\u003eWOLFSSH_NO_DH_GEX_SHA256\u003c/code\u003e defined so that \u003ccode\u003ediffie-hellman-group-exchange-sha256\u003c/code\u003e is neither offered nor accepted, which removes the message 31 dispatch path entirely. Where group exchange must stay available, lowering \u003ccode\u003eWOLFSSH_DEFAULT_GEXDH_MAX\u003c/code\u003e reduces the size of the value a peer can submit for primality testing and so the cost of a single packet, but it does not stop a server from accepting the message.\u003cbr\u003e"
}
],
"value": "Build wolfSSH with WOLFSSH_NO_DH_GEX_SHA256 defined so that diffie-hellman-group-exchange-sha256 is neither offered nor accepted, which removes the message 31 dispatch path entirely. Where group exchange must stay available, lowering WOLFSSH_DEFAULT_GEXDH_MAX reduces the size of the value a peer can submit for primality testing and so the cost of a single packet, but it does not stop a server from accepting the message."
}
],
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
"assignerShortName": "wolfSSL",
"cveId": "CVE-2026-84897",
"datePublished": "2026-10-07T02:42:28.388Z",
"dateReserved": "2026-09-02T15:07:44.223Z",
"dateUpdated": "2026-10-07T18:37:00.316Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
An application must make resources available to a client commensurate with the client's access level.
Mitigation
Architecture and Design
An application must, at all times, keep track of allocated resources and meter their usage appropriately.
Mitigation
System Configuration
Consider disabling resource-intensive algorithms on the server side, such as Diffie-Hellman key exchange.
No CAPEC attack patterns related to this CWE.