Common Weakness Enumeration
CWE-338
AllowedUse of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Abstraction: Base · Status: Draft
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.
324 vulnerabilities reference this CWE, most recent first.
CVE-2026-9205 (GCVE-0-2026-9205)
Vulnerability from cvelistv5 – Published: 2026-08-05 18:09 – Updated: 2026-08-07 12:56
VLAI
EPSS
VEX
Title
Langflow is affected by weaknesses in secret handling and sensitive configuration access
Summary
IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 03:55 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7282648 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.10.3
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-9205",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-06T03:55:52.571626Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-07T12:56:44.463Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:*"
],
"product": "Langflow OSS",
"vendor": "IBM",
"versions": [
{
"lessThanOrEqual": "1.10.3",
"status": "affected",
"version": "1.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Kolega.dev (kolega-ai-dev) https://kolega.dev"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the\u0026nbsp;\u003ccode\u003eensure_fernet_key()\u003c/code\u003e function.\u003c/p\u003e"
}
],
"value": "IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the\u00a0ensure_fernet_key() function."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T18:09:11.795Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7282648"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM recommends upgrading to Langflow OSS 1.11.0 or newer \u003ca href=\"https://github.com/langflow-ai/langflow/releases\" rel=\"nofollow\"\u003ehttps://github.com/langflow-ai/langflow/releases\u003c/a\u003e\u003c/p\u003e"
}
],
"value": "IBM recommends upgrading to Langflow OSS 1.11.0 or newer https://github.com/langflow-ai/langflow/releases"
}
],
"title": "Langflow is affected by weaknesses in secret handling and sensitive configuration access"
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-9205",
"datePublished": "2026-08-05T18:09:11.795Z",
"dateReserved": "2026-05-21T16:40:09.152Z",
"dateUpdated": "2026-08-07T12:56:44.463Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8647 (GCVE-0-2026-8647)
Vulnerability from cvelistv5 – Published: 2026-05-26 22:53 – Updated: 2026-05-28 14:09
VLAI
EPSS
VEX
Title
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available
Summary
Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available.
The random_bytes function fell back to using the built-in rand() function when none of the Perl modules Crypt::PRNG, Crypt::OpenSSL::Random, Net::SSLeay, Crypt::Random, or Bytes::Random::Secure were available.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-28 14:09 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MIK | Crypt::ScryptKDF |
Affected:
0 , ≤ 0.010
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-27T01:41:36.078Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/26/8"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8647",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-28T14:09:53.476428Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T14:09:56.026Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Crypt-ScryptKDF",
"product": "Crypt::ScryptKDF",
"programFiles": [
"lib/Crypt/ScryptKDF.pm"
],
"programRoutines": [
{
"name": "Crypt::ScryptKDF::random_bytes"
}
],
"repo": "https://github.com/DCIT/perl-Crypt-ScryptKDF",
"vendor": "MIK",
"versions": [
{
"lessThanOrEqual": "0.010",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available.\n\nThe random_bytes function fell back to using the built-in rand() function when none of the Perl modules Crypt::PRNG, Crypt::OpenSSL::Random, Net::SSLeay, Crypt::Random, or Bytes::Random::Secure were available."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-26T22:53:49.993Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/changes"
},
{
"url": "https://metacpan.org/release/MIK/Crypt-ScryptKDF-0.011/diff/MIK/Crypt-ScryptKDF-0.010#lib/Crypt/ScryptKDF.pm"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 0.011 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2026-05-13T00:00:00.000Z",
"value": "Issue reported to CPANSec"
},
{
"lang": "en",
"time": "2026-05-14T00:00:00.000Z",
"value": "Issue reported to maintainer"
},
{
"lang": "en",
"time": "2026-05-16T00:00:00.000Z",
"value": "Version 0.011 with fix released."
}
],
"title": "Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available",
"workarounds": [
{
"lang": "en",
"value": "Install one of the recommended Perl modules, such as Crypt::PRNG."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-8647",
"datePublished": "2026-05-26T22:53:49.993Z",
"dateReserved": "2026-05-14T22:46:50.791Z",
"dateUpdated": "2026-05-28T14:09:56.026Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8503 (GCVE-0-2026-8503)
Vulnerability from cvelistv5 – Published: 2026-05-15 11:06 – Updated: 2026-05-15 15:37
VLAI
EPSS
VEX
Title
Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids
Summary
Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids.
Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems.
Note that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module.
This issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 15:36 UTC
CWE
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GUIMARD | Apache::Session::Generate::SHA256 |
Affected:
0 , < 1.3.19
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-8503",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-15T15:36:59.141220Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-15T15:37:28.791Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Apache-Session-Browsable",
"product": "Apache::Session::Generate::SHA256",
"programFiles": [
"lib/Apache/Session/Generate/SHA256.pm"
],
"programRoutines": [
{
"name": "Apache::Session::Generate::SHA256#generate"
}
],
"repo": "https://github.com/LemonLDAPNG/Apache-Session-Browseable",
"vendor": "GUIMARD",
"versions": [
{
"lessThan": "1.3.19",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids.\n\nApache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems.\n\nNote that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module.\n\nThis issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5."
}
],
"impacts": [
{
"capecId": "CAPEC-115",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-115 Authentication Bypass"
}
]
},
{
"capecId": "CAPEC-102",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-102 Session Sidejacking"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-340",
"description": "CWE-340 Generation of Predictable Numbers or Identifiers",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-15T11:06:29.777Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/GUIMARD/Apache-Session-Browseable-1.3.19/changes"
},
{
"url": "https://metacpan.org/release/GUIMARD/Apache-Session-Browseable-1.3.19/diff/GUIMARD/Apache-Session-Browseable-1.3.18#lib/Apache/Session/Generate/SHA256.pm"
},
{
"tags": [
"patch"
],
"url": "https://github.com/LemonLDAPNG/Apache-Session-Browseable/commit/cc915cbbd266776eec3dd8bf4748b15fa827dbd0.patch"
},
{
"tags": [
"related"
],
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40931"
},
{
"tags": [
"related"
],
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40932"
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2026-05-13T00:00:00.000Z",
"value": "Issue identified by CPANSec"
},
{
"lang": "en",
"time": "2026-05-13T00:00:00.000Z",
"value": "Issue reported to author"
},
{
"lang": "en",
"time": "2026-05-14T00:00:00.000Z",
"value": "Version 1.3.19 released"
}
],
"title": "Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids",
"workarounds": [
{
"lang": "en",
"value": "Upgrade to version 1.3.19 or later."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-8503",
"datePublished": "2026-05-15T11:06:29.777Z",
"dateReserved": "2026-05-13T21:07:03.760Z",
"dateUpdated": "2026-05-15T15:37:28.791Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-8169 (GCVE-0-2026-8169)
Vulnerability from cvelistv5 – Published: 2026-07-20 17:33 – Updated: 2026-07-20 19:20
VLAI
EPSS
VEX
Title
ExtremeXOS Debug-Mode Privilege Escalation via Weak PRNG
Summary
ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.
Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 18:26 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.extremenetworks.com/support/policies/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Extreme Networks | Switch Engine (EXOS) |
Affected:
0 , < 31.7.4
(custom)
Affected: 32.0.0 , < 32.7.4.15 (custom) Affected: 33.0.0 , < 33.1.100 (custom) Affected: 33.2.0 , < 33.7.1 (custom) |
Date Public
2026-07-20 17:27
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-8169",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-20T18:26:07.254983Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-20T18:26:18.638Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Switch Engine"
],
"product": "Switch Engine (EXOS)",
"vendor": "Extreme Networks",
"versions": [
{
"lessThan": "31.7.4",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "32.7.4.15",
"status": "affected",
"version": "32.0.0",
"versionType": "custom"
},
{
"lessThan": "33.1.100",
"status": "affected",
"version": "33.0.0",
"versionType": "custom"
},
{
"lessThan": "33.7.1",
"status": "affected",
"version": "33.2.0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Extreme would like to thank Hadrien Barral (Universit\u00e9 Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings."
}
],
"datePublic": "2026-07-20T17:27:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.\u003c/p\u003e\u003cp\u003eExtreme would like to thank Hadrien Barral (Universit\u00e9 Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.\u003c/p\u003e"
}
],
"value": "ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.\n\n\n\nExtreme would like to thank Hadrien Barral (Universit\u00e9 Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings."
}
],
"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": "LOW",
"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:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-20T19:20:47.552Z",
"orgId": "1c053176-eef3-4d6a-ae0b-24728c86587b",
"shortName": "ExtremeNetworks"
},
"references": [
{
"name": "Extreme Networks Product Security",
"tags": [
"vendor-advisory"
],
"url": "https://www.extremenetworks.com/support/policies/product-security"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eExtreme Networks has released fixed versions of Switch Engine (EXOS) that address this vulnerability. Customers should upgrade to one of the following releases or later: 31.7.4, 32.7.4.15, 33.1.100, or 33.7.1.\u003c/p\u003e"
}
],
"value": "Extreme Networks has released fixed versions of Switch Engine (EXOS) that address this vulnerability. Customers should upgrade to one of the following releases or later: 31.7.4, 32.7.4.15, 33.1.100, or 33.7.1."
}
],
"source": {
"advisory": "SA-2026-087",
"discovery": "EXTERNAL"
},
"title": "ExtremeXOS Debug-Mode Privilege Escalation via Weak PRNG",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eWhere immediate upgrade is not feasible, customers should: (1) restrict CLI access to trusted administrators only; (2) enforce strong authentication and rotate any default credentials; (3) restrict physical access to serial console ports; and (4) monitor device logs for unexpected debug-mode activation attempts.\u003c/p\u003e"
}
],
"value": "Where immediate upgrade is not feasible, customers should: (1) restrict CLI access to trusted administrators only; (2) enforce strong authentication and rotate any default credentials; (3) restrict physical access to serial console ports; and (4) monitor device logs for unexpected debug-mode activation attempts."
}
],
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "1c053176-eef3-4d6a-ae0b-24728c86587b",
"assignerShortName": "ExtremeNetworks",
"cveId": "CVE-2026-8169",
"datePublished": "2026-07-20T17:33:05.699Z",
"dateReserved": "2026-05-08T12:59:08.619Z",
"dateUpdated": "2026-07-20T19:20:47.552Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-7874 (GCVE-0-2026-7874)
Vulnerability from cvelistv5 – Published: 2026-06-30 19:11 – Updated: 2026-07-02 03:55
VLAI
EPSS
VEX
Title
Weak Cryptographic Key Derivation Exposed All Stored Credentials
Summary
IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 00:00 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7278447 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Langflow OSS |
Affected:
1.0.0 , ≤ 1.10.0
(semver)
cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:langflow_oss:1.10.0:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-7874",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-01T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-02T03:55:51.678Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
"cpe:2.3:a:ibm:langflow_oss:1.10.0:*:*:*:*:*:*:*"
],
"product": "Langflow OSS",
"vendor": "IBM",
"versions": [
{
"lessThanOrEqual": "1.10.0",
"status": "affected",
"version": "1.0.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Akshat Sinha (akshatgit) akshat14132@iiitd.ac.in https://github.com/akshatgit, (Kolega.dev ) kolega-ai-dev https://kolega.dev/, Christopher Lusk (north-echo) www.northecho.dev"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest.\u003c/p\u003e"
}
],
"value": "IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow disclosure of all stored credentials due to the use of a weak and reversible key derivation mechanism for encryption at rest."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T19:11:43.653Z",
"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"shortName": "ibm"
},
"references": [
{
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.ibm.com/support/pages/node/7278447"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eIBM strongly recommends addressing the vulnerability now by upgrading \u003ca href=\"https://pypi.org/project/langflow/\" rel=\"nofollow\"\u003eLangflow OSS to version 1.10.1\u003c/a\u003e\u003c/p\u003e"
}
],
"value": "IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.10.1"
}
],
"title": "Weak Cryptographic Key Derivation Exposed All Stored Credentials",
"x_generator": {
"engine": "ibm-cvegen"
}
}
},
"cveMetadata": {
"assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
"assignerShortName": "ibm",
"cveId": "CVE-2026-7874",
"datePublished": "2026-06-30T19:11:43.653Z",
"dateReserved": "2026-05-05T14:23:39.800Z",
"dateUpdated": "2026-07-02T03:55:51.678Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-7830 (GCVE-0-2026-7830)
Vulnerability from cvelistv5 – Published: 2026-07-01 03:33 – Updated: 2026-07-09 04:35
VLAI
EPSS
VEX
Title
UltraVNC MS-Logon II uses 64-bit Diffie-Hellman and seeded libc rand() enabling credential interception
Summary
UltraVNC through 1.8.2.2 uses inadequate cryptography in the MS-Logon II authentication scheme (rfbUltraVNC_MsLogonIIAuth). In rfb/dh.cpp the Diffie-Hellman key exchange is performed with parameters that fit in an unsigned 64-bit integer (DH_MAX_BITS controls the prime size). A 64-bit DH key can be broken by Pollard's rho algorithm in under one second on current hardware. Additionally, the private exponent is generated by the rng() function, which multiplies three libc rand() values seeded from time(NULL). With approximately 31 bits of internal state and a time-based seed, the private exponent is recoverable in under a minute by a passive observer. A network attacker who can observe the MS-Logon II handshake (via sniffing, recording, or man-in-the-middle) can derive the shared DH key and decrypt the encapsulated username and password, resulting in full credential disclosure. This affects legacy MS-Logon II connections; MS-Logon III (X25519 + AES-256-GCM) is unaffected.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 13:13 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://uvnc.com/ | vendor-advisory |
| https://github.com/ultravnc/UltraVNC | product |
| https://www.securin.io/zero-days/cve-2026-7830-31… |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-7830",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-01T13:13:10.627838Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-01T13:13:23.590Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"modules": [
"winvnc",
"ms-logon"
],
"product": "UltraVNC",
"vendor": "uvnc",
"versions": [
{
"lessThanOrEqual": "1.8.2.2",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Arjun Basnet, Securin (arjun.basnet@securin.io)"
}
],
"descriptions": [
{
"lang": "en",
"value": "UltraVNC through 1.8.2.2 uses inadequate cryptography in the MS-Logon II authentication scheme (rfbUltraVNC_MsLogonIIAuth). In rfb/dh.cpp the Diffie-Hellman key exchange is performed with parameters that fit in an unsigned 64-bit integer (DH_MAX_BITS controls the prime size). A 64-bit DH key can be broken by Pollard\u0027s rho algorithm in under one second on current hardware. Additionally, the private exponent is generated by the rng() function, which multiplies three libc rand() values seeded from time(NULL). With approximately 31 bits of internal state and a time-based seed, the private exponent is recoverable in under a minute by a passive observer. A network attacker who can observe the MS-Logon II handshake (via sniffing, recording, or man-in-the-middle) can derive the shared DH key and decrypt the encapsulated username and password, resulting in full credential disclosure. This affects legacy MS-Logon II connections; MS-Logon III (X25519 + AES-256-GCM) is unaffected."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-326",
"description": "Inadequate Encryption Strength",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-09T04:35:51.099Z",
"orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
"shortName": "securin"
},
"references": [
{
"name": "UltraVNC project page",
"tags": [
"vendor-advisory"
],
"url": "https://uvnc.com/"
},
{
"name": "UltraVNC source repository",
"tags": [
"product"
],
"url": "https://github.com/ultravnc/UltraVNC"
},
{
"url": "https://www.securin.io/zero-days/cve-2026-7830-31-bit-dh-weak-rng-ms-logon-credential-interception-ultravnc"
}
],
"source": {
"advisory": "Securin Security Advisory \u2014 FINDING-002",
"discovery": "EXTERNAL"
},
"timeline": [
{
"lang": "en",
"time": "2026-06-02T00:00:00.000Z",
"value": "Vulnerability discovered during security audit"
},
{
"lang": "en",
"time": "2026-06-17T00:00:00.000Z",
"value": "Reported to vendor (coordinated disclosure)"
},
{
"lang": "en",
"time": "2026-09-15T00:00:00.000Z",
"value": "Planned public disclosure (90-day window)"
}
],
"title": "UltraVNC MS-Logon II uses 64-bit Diffie-Hellman and seeded libc rand() enabling credential interception"
}
},
"cveMetadata": {
"assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
"assignerShortName": "securin",
"cveId": "CVE-2026-7830",
"datePublished": "2026-07-01T03:33:24.106Z",
"dateReserved": "2026-05-05T03:40:59.002Z",
"dateUpdated": "2026-07-09T04:35:51.099Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6659 (GCVE-0-2026-6659)
Vulnerability from cvelistv5 – Published: 2026-05-08 17:17 – Updated: 2026-05-26 22:52
VLAI
EPSS
VEX
Title
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts
Summary
Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.
The built-in rand function is predictable, and unsuitable for cryptography.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-08 18:01 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
5 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RSAVAGE | Crypt::PasswdMD5 |
Affected:
0 , ≤ 1.42
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6659",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-08T18:01:59.977528Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T18:04:17.941Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2026-05-08T19:30:59.696Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/08/17"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Crypt-PasswdMD5",
"product": "Crypt::PasswdMD5",
"programFiles": [
"lib/Crypt/PasswdMD5.pm"
],
"programRoutines": [
{
"name": "Crypt::PasswdMD5::random_md5_salt"
}
],
"repo": "https://github.com/ronsavage/Crypt-PasswdMD5",
"vendor": "RSAVAGE",
"versions": [
{
"lessThanOrEqual": "1.42",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.\n\nThe built-in rand function is predictable, and unsuitable for cryptography."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-26T22:52:31.427Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/RSAVAGE/Crypt-PasswdMD5-1.43/changes"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/ronsavage/Crypt-PasswdMD5/pull/3"
},
{
"tags": [
"patch"
],
"url": "https://github.com/ronsavage/Crypt-PasswdMD5/commit/a2f821637db0296082297aa4b02254ab08f0dc5e.patch"
},
{
"url": "https://metacpan.org/release/RSAVAGE/Crypt-PasswdMD5-1.42/source/lib/Crypt/PasswdMD5.pm#L35-47"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 1.43 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2026-04-14T00:00:00.000Z",
"value": "Issue reported to CPANSec"
},
{
"lang": "en",
"time": "2026-04-20T00:00:00.000Z",
"value": "Maintainer notified"
},
{
"lang": "en",
"time": "2026-05-08T00:00:00.000Z",
"value": "Vulnerability published"
},
{
"lang": "en",
"time": "2026-05-23T00:00:00.000Z",
"value": "Version 1.43 with fix uploaded to CPAN"
}
],
"title": "Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-6659",
"datePublished": "2026-05-08T17:17:01.357Z",
"dateReserved": "2026-04-20T08:24:35.812Z",
"dateUpdated": "2026-05-26T22:52:31.427Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6146 (GCVE-0-2026-6146)
Vulnerability from cvelistv5 – Published: 2026-05-11 19:12 – Updated: 2026-05-13 13:00
VLAI
EPSS
VEX
Title
Amazon::Credentials versions through 1.2.0 for Perl uses rand to generate encryption keys
Summary
Amazon::Credentials versions through 1.2.0 for Perl uses rand to generate encryption keys.
Amazon::Credentials stores credentials in an obfuscated form to prevent access to the secrets from a data dump of the object.
Before version 1.3.0, the secrets were encrypted using a 64-bit key that was generated using the built-in rand function, which is predictable and unsuitable for cryptography.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 12:59 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BIGFOOT | Amazon::Credentials |
Affected:
0 , ≤ 1.2.0
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-11T21:29:37.446Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/11/15"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6146",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T12:59:35.540086Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T13:00:09.543Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Amazon-Credentials",
"product": "Amazon::Credentials",
"programFiles": [
"lib/Amazon/Credentials.pm"
],
"programRoutines": [
{
"name": "Amazon::Credentials::create_passkey"
}
],
"repo": "https://github.com/rlauer6/Amazon-Credentials",
"vendor": "BIGFOOT",
"versions": [
{
"lessThanOrEqual": "1.2.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Amazon::Credentials versions through 1.2.0 for Perl uses rand to generate encryption keys.\n\nAmazon::Credentials stores credentials in an obfuscated form to prevent access to the secrets from a data dump of the object.\n\nBefore version 1.3.0, the secrets were encrypted using a 64-bit key that was generated using the built-in rand function, which is predictable and unsuitable for cryptography."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:12:17.630Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"url": "https://metacpan.org/release/BIGFOOT/Amazon-Credentials-1.2.0/source/lib/Amazon/Credentials.pm#L1415-1418"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/BIGFOOT/Amazon-Credentials-1.3.0/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 1.3.0 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Amazon::Credentials versions through 1.2.0 for Perl uses rand to generate encryption keys",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-6146",
"datePublished": "2026-05-11T19:12:17.630Z",
"dateReserved": "2026-04-12T17:24:50.568Z",
"dateUpdated": "2026-05-13T13:00:09.543Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5088 (GCVE-0-2026-5088)
Vulnerability from cvelistv5 – Published: 2026-04-15 07:03 – Updated: 2026-05-01 16:03
VLAI
EPSS
VEX
Title
Apache::API::Password versions through 0.5.2 for Perl can generate insecure random values for salts
Summary
Apache::API::Password versions through 0.5.2 for Perl can generate insecure random values for salts.
The _make_salt and _make_salt_bcrypt methods will attept to load Crypt::URandom and then Bytes::Random::Secure to generate random bytes for the salt. If those modules are unavailable, it will simply return 16 bytes generated with Perl's built-in rand function.
The rand function is unsuitable for cryptographic use.
These salts are used for password hashing.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-16 11:59 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| JDEGUEST | Apache::API::Password |
Affected:
0 , ≤ 0.5.2
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-04-15T17:24:20.860Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/15/4"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/04/15/5"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5088",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-16T11:59:31.300289Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-16T12:05:32.095Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Apache2-API",
"product": "Apache::API::Password",
"programFiles": [
"lib/Apache2/API.pm"
],
"programRoutines": [
{
"name": "Apache2::API::Password::_make_salt"
},
{
"name": "Apache2::API::Password::_make_salt_bcrypt"
}
],
"repo": "https://gitlab.com/jackdeguest/Apache2-API",
"vendor": "JDEGUEST",
"versions": [
{
"lessThanOrEqual": "0.5.2",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Apache::API::Password versions through 0.5.2 for Perl can generate insecure random values for salts.\n\nThe _make_salt and _make_salt_bcrypt methods will attept to load Crypt::URandom and then Bytes::Random::Secure to generate random bytes for the salt. If those modules are unavailable, it will simply return 16 bytes generated with Perl\u0027s built-in rand function.\n\nThe rand function is unsuitable for cryptographic use.\n\nThese salts are used for password hashing."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-01T16:03:43.825Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/JDEGUEST/Apache2-API-v0.5.3/changes"
},
{
"tags": [
"related"
],
"url": "https://metacpan.org/release/JDEGUEST/Apache2-API-v0.5.2/view/lib/Apache2/API/Password.pod"
},
{
"tags": [
"technical-description"
],
"url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"
},
{
"url": "https://metacpan.org/pod/Crypt::URandom"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version v0.5.3 or later, and install Crypt::URandom."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Apache::API::Password versions through 0.5.2 for Perl can generate insecure random values for salts",
"workarounds": [
{
"lang": "en",
"value": "Install Crypt::URandom."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-5088",
"datePublished": "2026-04-15T07:03:13.742Z",
"dateReserved": "2026-03-28T19:31:47.729Z",
"dateUpdated": "2026-05-01T16:03:43.825Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5087 (GCVE-0-2026-5087)
Vulnerability from cvelistv5 – Published: 2026-03-31 16:03 – Updated: 2026-04-01 14:43
VLAI
EPSS
VEX
Title
PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely
Summary
PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely.
PAGI::Middleware::Session::Store::Cookie attempts to read bytes from the /dev/urandom device directly. If that fails (for example, on systems without the device, such as Windows), then it will emit a warning that recommends the user install Crypt::URandom, and then return a string of random bytes generated by the built-in rand function, which is unsuitable for cryptographic applications.
This modules does not use the Crypt::URandom module, and installing it will not fix the problem.
The random bytes are used for generating an initialisation vector (IV) to encrypt the cookie.
A predictable IV may make it easier for malicious users to decrypt and tamper with the session data that is stored in the cookie.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 14:40 UTC
CWE
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| JJNAPIORK | PAGI::Middleware::Session::Store::Cookie |
Affected:
0 , ≤ 0.001003
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-03-31T18:18:48.427Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/03/31/10"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5087",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T14:40:20.356872Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T14:43:35.295Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "PAGI-Middleware-Session-Store-Cookie",
"product": "PAGI::Middleware::Session::Store::Cookie",
"programFiles": [
"lib/PAGI/Middleware/Session/Store/Cookie.pm"
],
"programRoutines": [
{
"name": "PAGI::Middleware::Session::Store::Cookie::_random_bytes"
}
],
"repo": "https://github.com/jjn1056/PAGI-Middleware-Session-Store-Cookie",
"vendor": "JJNAPIORK",
"versions": [
{
"lessThanOrEqual": "0.001003",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely.\n\nPAGI::Middleware::Session::Store::Cookie attempts to read bytes from the /dev/urandom device directly. If that fails (for example, on systems without the device, such as Windows), then it will emit a warning that recommends the user install Crypt::URandom, and then return a string of random bytes generated by the built-in rand function, which is unsuitable for cryptographic applications.\n\nThis modules does not use the Crypt::URandom module, and installing it will not fix the problem.\n\nThe random bytes are used for generating an initialisation vector (IV) to encrypt the cookie.\n\nA predictable IV may make it easier for malicious users to decrypt and tamper with the session data that is stored in the cookie."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-338",
"description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1204",
"description": "CWE-1204 Generation of Weak Initialization Vector (IV)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-31T16:03:08.278Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"url": "https://metacpan.org/release/JJNAPIORK/PAGI-Middleware-Session-Store-Cookie-0.001003/source/lib/PAGI/Middleware/Session/Store/Cookie.pm#L156-173"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/JJNAPIORK/PAGI-Middleware-Session-Store-Cookie-0.001004/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 0.001004 or newer."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "PAGI::Middleware::Session::Store::Cookie versions through 0.001003 for Perl generates random bytes insecurely",
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-5087",
"datePublished": "2026-03-31T16:03:08.278Z",
"dateReserved": "2026-03-28T19:29:58.433Z",
"dateUpdated": "2026-04-01T14:43:35.295Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Implementation
Use functions or hardware which use a hardware-based random number generation for all crypto. This is the recommended solution. Use CyptGenRandom on Windows, or hw_rand() on Linux.
No CAPEC attack patterns related to this CWE.