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Vulnerability details: VCID-z63y-8vav-6kct
Vulnerability ID VCID-z63y-8vav-6kct
Aliases CVE-2021-27291
GHSA-pq64-v7f5-gqh8
PYSEC-2021-141
Summary multiple issues
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-400 Uncontrolled Resource Consumption
CWE-1333 Inefficient Regular Expression Complexity
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27291.json
epss 0.0252 https://api.first.org/data/v1/epss?cve=CVE-2021-27291
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce
generic_textual HIGH https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce
cvssv3.1 7.5 https://github.com/pygments/pygments
generic_textual HIGH https://github.com/pygments/pygments
cvssv3.1 7.5 https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14
generic_textual HIGH https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14
cvssv3.1 7.5 https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml
generic_textual HIGH https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-27291
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2021-27291
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-27291
archlinux Low https://security.archlinux.org/AVG-1662
archlinux Medium https://security.archlinux.org/AVG-1775
cvssv3.1 7.5 https://www.debian.org/security/2021/dsa-4878
generic_textual HIGH https://www.debian.org/security/2021/dsa-4878
cvssv3.1 7.5 https://www.debian.org/security/2021/dsa-4889
generic_textual HIGH https://www.debian.org/security/2021/dsa-4889
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27291.json
https://api.first.org/data/v1/epss?cve=CVE-2021-27291
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20270
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27291
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30152
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30154
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30155
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30157
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30158
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30159
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce
https://github.com/advisories/GHSA-pq64-v7f5-gqh8
https://github.com/pygments/pygments
https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14
https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml
https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html
https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ/
https://nvd.nist.gov/vuln/detail/CVE-2021-27291
https://www.debian.org/security/2021/dsa-4878
https://www.debian.org/security/2021/dsa-4889
1940603 https://bugzilla.redhat.com/show_bug.cgi?id=1940603
985574 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=985574
AVG-1662 https://security.archlinux.org/AVG-1662
AVG-1775 https://security.archlinux.org/AVG-1775
cpe:2.3:a:pygments:pygments:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:pygments:pygments:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
RHSA-2021:0781 https://access.redhat.com/errata/RHSA-2021:0781
RHSA-2021:3252 https://access.redhat.com/errata/RHSA-2021:3252
RHSA-2021:4139 https://access.redhat.com/errata/RHSA-2021:4139
RHSA-2021:4150 https://access.redhat.com/errata/RHSA-2021:4150
RHSA-2021:4151 https://access.redhat.com/errata/RHSA-2021:4151
USN-4897-1 https://usn.ubuntu.com/4897-1/
USN-4897-2 https://usn.ubuntu.com/4897-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-27291.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pygments/pygments
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

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none

high

low

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-27291
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-27291
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2021/dsa-4878
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2021/dsa-4889
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.84735
EPSS Score 0.0252
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T11:54:28.094921+00:00 Arch Linux Importer Import https://security.archlinux.org/AVG-1775 36.1.3