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PYSEC-2021-141
Vulnerability from pysec - Published: 2021-03-17 13:15 - Updated: 2021-08-27 03:22
VLAI
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Impacted products
| Name | purl | pygments | pkg:pypi/pygments |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pygments",
"purl": "pkg:pypi/pygments"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2e7e8c4a7b318f4032493773732754e418279a14"
}
],
"repo": "https://github.com/pygments/pygments",
"type": "GIT"
},
{
"events": [
{
"introduced": "1.1"
},
{
"fixed": "2.7.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.1",
"1.1.1",
"1.2",
"1.2.1",
"1.2.2",
"1.3",
"1.3.1",
"1.4",
"1.5",
"1.6",
"1.6rc1",
"2.0",
"2.0.1",
"2.0.2",
"2.0rc1",
"2.1",
"2.1.1",
"2.1.2",
"2.1.3",
"2.2.0",
"2.3.0",
"2.3.1",
"2.4.0",
"2.4.1",
"2.4.2",
"2.5.1",
"2.5.2",
"2.6.0",
"2.6.1",
"2.7.0",
"2.7.1",
"2.7.2",
"2.7.3"
]
}
],
"aliases": [
"CVE-2021-27291",
"GHSA-pq64-v7f5-gqh8"
],
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "PYSEC-2021-141",
"modified": "2021-08-27T03:22:17.331175Z",
"published": "2021-03-17T13:15:00Z",
"references": [
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "FIX",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "ADVISORY",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "ADVISORY",
"url": "https://www.debian.org/security/2021/dsa-4889"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-pq64-v7f5-gqh8"
}
]
}
BREW-TWINE-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:44 – Updated: 2026-09-10 01:31 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "twine",
"purl": "pkg:brew/twine"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-twine-CVE-2021-27291",
"modified": "2026-09-10T01:31:48Z",
"published": "2026-08-13T17:44:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-VSVIEW-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:48 – Updated: 2026-09-10 01:35 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.21.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "vsview",
"purl": "pkg:brew/vsview"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.21.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.21.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-vsview-CVE-2021-27291",
"modified": "2026-09-10T01:35:36Z",
"published": "2026-08-13T17:48:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-VUNNEL-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:48 – Updated: 2026-09-10 01:35 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "vunnel",
"purl": "pkg:brew/vunnel"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.63.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-vunnel-CVE-2021-27291",
"modified": "2026-09-10T01:35:37Z",
"published": "2026-08-13T17:48:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-WOOB-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:54 – Updated: 2026-09-10 01:41 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "woob",
"purl": "pkg:brew/woob"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.7_9"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-woob-CVE-2021-27291",
"modified": "2026-09-10T01:41:06Z",
"published": "2026-08-13T17:54:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-WTFIS-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:54 – Updated: 2026-09-10 01:41 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "wtfis",
"purl": "pkg:brew/wtfis"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.15.0_1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-wtfis-CVE-2021-27291",
"modified": "2026-09-10T01:41:07Z",
"published": "2026-08-13T17:54:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-XONSH-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:54 – Updated: 2026-09-17 18:58 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.21.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "xonsh",
"purl": "pkg:brew/xonsh"
},
"ranges": [
{
"events": [
{
"introduced": "0.7.1"
},
{
"fixed": "0.9.25"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.21.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.21.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-xonsh-CVE-2021-27291",
"modified": "2026-09-17T18:58:29Z",
"published": "2026-08-13T17:54:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-YAMLFIX-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:54 – Updated: 2026-09-10 01:42 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "yamlfix",
"purl": "pkg:brew/yamlfix"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.19.1_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-yamlfix-CVE-2021-27291",
"modified": "2026-09-10T01:42:04Z",
"published": "2026-08-13T17:54:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
BREW-ZABBIX-CLI-CVE-2021-27291 (GHSA-PQ64-V7F5-GQH8)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:55 – Updated: 2026-09-10 01:44 – Source website
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
References
| URL | Type | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "pygments",
"resource_purl": "pkg:pypi/pygments@2.20.0",
"upstream_fixed_in": "2.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "zabbix-cli",
"purl": "pkg:brew/zabbix-cli"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.7.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/pygments@2.20.0",
"name": "pygments",
"resource": "pygments",
"strategy": "registry",
"subject_version": "2.20.0"
}
]
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "BREW-zabbix-cli-CVE-2021-27291",
"modified": "2026-09-10T01:44:55Z",
"published": "2026-08-13T17:55:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
"upstream": [
"GHSA-pq64-v7f5-gqh8",
"CVE-2021-27291",
"PYSEC-2021-141"
]
}
CVE-2021-27291 (GCVE-0-2021-27291)
Vulnerability from cvelistv5 – Published: 2021-03-17 12:31 – Updated: 2024-08-03 20:48
VLAI
EPSS
VEX
Summary
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://gist.github.com/b-c-ds/b1a2cc0c68a35c5718… | x_refsource_MISC |
| https://github.com/pygments/pygments/commit/2e7e8… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2021/dsa-4878 | vendor-advisoryx_refsource_DEBIAN |
| https://www.debian.org/security/2021/dsa-4889 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T20:48:16.368Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"name": "[debian-lts-announce] 20210319 [SECURITY] [DLA 2600-1] pygments security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
{
"name": "DSA-4878",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
"name": "DSA-4889",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4889"
},
{
"name": "[debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
"name": "FEDORA-2021-166dfc62b2",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/"
},
{
"name": "FEDORA-2021-3f975f68c8",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/"
},
{
"name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-05-06T22:06:22.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"name": "[debian-lts-announce] 20210319 [SECURITY] [DLA 2600-1] pygments security update",
"tags": [
"mailing-list",
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GHSA-PQ64-V7F5-GQH8
Vulnerability from github – Published: 2021-03-29 16:33 – Updated: 2024-10-14 16:10
VLAI
Summary
Pygments vulnerable to Regular Expression Denial of Service (ReDoS)
Details
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Pygments"
},
"ranges": [
{
"events": [
{
"introduced": "1.1"
},
{
"fixed": "2.7.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-27291"
],
"database_specific": {
"cwe_ids": [
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2021-03-22T20:28:40Z",
"nvd_published_at": "2021-03-17T13:15:00Z",
"severity": "HIGH"
},
"details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
"id": "GHSA-pq64-v7f5-gqh8",
"modified": "2024-10-14T16:10:54Z",
"published": "2021-03-29T16:33:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291"
},
{
"type": "WEB",
"url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14"
},
{
"type": "WEB",
"url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce"
},
{
"type": "PACKAGE",
"url": "https://github.com/pygments/pygments"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml"
},
{
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"url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html"
},
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"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
},
{
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"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4878"
},
{
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"url": "https://www.debian.org/security/2021/dsa-4889"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)"
}
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(linear fit over daily sighting counts)
Show additional events:
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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.
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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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