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(CVE-2026-56860)
Vulnerability from cleanstart – Published: 2026-09-01 11:17 – Updated: 2026-09-18 11:59 – Source website
Withdrawn 2026-09-18
VLAI
Summary
Security fixes in prometheus-fips 3.11.3-r2
Details
Package prometheus-fips version 3.11.3-r2 fixes 15 vulnerabilities: CVE-2026-56860, CVE-2026-56858, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853...
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"package": {
"ecosystem": "CleanStart",
"name": "prometheus-fips"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.11.3-r2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.11.3-r2"
]
}
],
"credits": [],
"database_specific": {},
"details": "Package prometheus-fips version 3.11.3-r2 fixes 15 vulnerabilities: CVE-2026-56860, CVE-2026-56858, CVE-2026-33818, CVE-2026-46600, CVE-2026-56853...",
"id": "CLEANSTART-2026-HW17175",
"modified": "2026-09-18T11:59:01.768079Z",
"published": "2026-09-01T11:17:16Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/prometheus/prometheus"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in prometheus-fips 3.11.3-r2",
"upstream": [
"CVE-2026-56860",
"CVE-2026-56858",
"CVE-2026-33818",
"CVE-2026-46600",
"CVE-2026-56853",
"CVE-2026-56859",
"CVE-2026-56862",
"CVE-2026-39821",
"CVE-2026-33997",
"CVE-2026-41567",
"CVE-2026-42306",
"CVE-2026-34040",
"CVE-2026-41568",
"CVE-2026-2303",
"CVE-2026-41178"
],
"withdrawn": "2026-09-18T11:59:01.768079Z"
}
CVE-2026-56853 (GCVE-0-2026-56853)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:23
VLAI
EPSS
VEX
Title
Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http
Summary
When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:22 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
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"name": "conn.readRequest"
},
{
"name": "conn.serve"
},
{
"name": "ListenAndServe"
},
{
"name": "ListenAndServeTLS"
},
{
"name": "Serve"
},
{
"name": "ServeTLS"
},
{
"name": "Server.ListenAndServe"
},
{
"name": "Server.ListenAndServeTLS"
},
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},
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}
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}
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},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6089"
}
],
"title": "Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http"
}
},
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"datePublished": "2026-08-13T21:58:53.092Z",
"dateReserved": "2026-06-23T15:10:49.352Z",
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},
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"dataVersion": "5.2"
}
CVE-2026-56858 (GCVE-0-2026-56858)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:32
VLAI
EPSS
VEX
Title
Fix Javascript regexp context tracking in html/template
Summary
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:31 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | html/template |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
Credits
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
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"defaultStatus": "unaffected",
"packageName": "html/template",
"product": "html/template",
"programRoutines": [
{
"name": "tJS"
},
{
"name": "Template.Execute"
},
{
"name": "Template.ExecuteTemplate"
}
],
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]
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"lang": "en",
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}
],
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},
{
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},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6091"
}
],
"title": "Fix Javascript regexp context tracking in html/template"
}
},
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CVE-2026-56859 (GCVE-0-2026-56859)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:21
VLAI
EPSS
VEX
Title
Add recursion depth guard during decode in encoding/xml
Summary
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:21 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | encoding/xml |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"timestamp": "2026-08-14T15:21:09.615961Z",
"version": "2.0.3"
},
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"providerMetadata": {
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},
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],
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"defaultStatus": "unaffected",
"packageName": "encoding/xml",
"product": "encoding/xml",
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{
"name": "Decoder.push"
},
{
"name": "Decoder.pop"
},
{
"name": "Decoder.RawToken"
},
{
"name": "Decoder.unmarshalPath"
},
{
"name": "Decoder.unmarshal"
},
{
"name": "Decoder.Decode"
},
{
"name": "Decoder.DecodeElement"
},
{
"name": "Decoder.Skip"
},
{
"name": "Decoder.Token"
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"name": "Unmarshal"
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"url": "https://go.dev/cl/803320"
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},
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}
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CVE-2026-56860 (GCVE-0-2026-56860)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 16:14
VLAI
EPSS
VEX
Title
Avoid quadratic complexity in resolvePath in net/url
Summary
Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:14 UTC
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | net/url |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
{
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"attackVector": "NETWORK",
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"baseScore": 5.9,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"timestamp": "2026-08-14T16:14:34.601382Z",
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"cna": {
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{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/url",
"product": "net/url",
"programRoutines": [
{
"name": "resolvePath"
},
{
"name": "URL.Parse"
},
{
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}
],
"problemTypes": [
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"descriptions": [
{
"description": "CWE-407: Inefficient Algorithmic Complexity",
"lang": "en"
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"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6218"
}
],
"title": "Avoid quadratic complexity in resolvePath in net/url"
}
},
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CVE-2026-56862 (GCVE-0-2026-56862)
Vulnerability from cvelistv5 – Published: 2026-08-13 21:58 – Updated: 2026-08-14 15:29
VLAI
EPSS
VEX
Title
Limit handshake messages we are willing to accept post-handshake in crypto/tls
Summary
Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:27 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Go standard library | crypto/tls |
Affected:
0 , < 1.25.13
(semver)
Affected: 1.26.0-0 , < 1.26.6 (semver) Affected: 1.27.0-0 , < 1.27.0-rc.3 (semver) |
Credits
{
"containers": {
"adp": [
{
"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-2026-56862",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-14T15:27:34.651997Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-14T15:29:41.741Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "crypto/tls",
"product": "crypto/tls",
"programRoutines": [
{
"name": "Conn.readRecordOrCCS"
},
{
"name": "Conn.Handshake"
},
{
"name": "Conn.HandshakeContext"
},
{
"name": "Conn.Read"
},
{
"name": "Conn.Write"
},
{
"name": "Dial"
},
{
"name": "DialWithDialer"
},
{
"name": "Dialer.Dial"
},
{
"name": "Dialer.DialContext"
},
{
"name": "QUICConn.HandleData"
},
{
"name": "QUICConn.Start"
}
],
"vendor": "Go standard library",
"versions": [
{
"lessThan": "1.25.13",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.26.6",
"status": "affected",
"version": "1.26.0-0",
"versionType": "semver"
},
{
"lessThan": "1.27.0-rc.3",
"status": "affected",
"version": "1.27.0-0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Qi Deng of Aurascape.ai"
}
],
"descriptions": [
{
"lang": "en",
"value": "Handshake messages, such as KeyUpdate, are always considered as state-advancing, regardless of whether a handshake has been completed or not. As a result, a malicious client can keep sending KeyUpdate messages to force the server to keep performing key derivation operations indefinitely."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-13T21:58:53.216Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"references": [
{
"url": "https://go.dev/issue/80528"
},
{
"url": "https://go.dev/cl/804261"
},
{
"url": "https://groups.google.com/g/golang-announce/c/94pEornpRlI"
},
{
"url": "https://pkg.go.dev/vuln/GO-2026-6090"
}
],
"title": "Limit handshake messages we are willing to accept post-handshake in crypto/tls"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2026-56862",
"datePublished": "2026-08-13T21:58:53.216Z",
"dateReserved": "2026-06-23T15:10:49.353Z",
"dateUpdated": "2026-08-14T15:29:41.741Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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