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Vulnerability details: VCID-nxyn-eknv-tqbf
Vulnerability ID VCID-nxyn-eknv-tqbf
Aliases CVE-2021-30560
GHSA-59gp-qqm7-cw4j
Summary Use After Free Use after free in Blink XSLT in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-416 Use After Free
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2021-30560
cvssv3.1 8.8 https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
generic_textual HIGH https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
cvssv3.1 8.8 https://crbug.com/1219209
generic_textual HIGH https://crbug.com/1219209
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-59gp-qqm7-cw4j
cvssv3.1 8.8 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-30560.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-30560.yml
cvssv3.1 8.8 https://github.com/sparklemotion/nokogiri
generic_textual HIGH https://github.com/sparklemotion/nokogiri
cvssv3.1 8.8 https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.2
generic_textual HIGH https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.2
cvssv3.1 8.8 https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-fq42-c5rg-92c2
generic_textual HIGH https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-fq42-c5rg-92c2
cvssv3.1 8.8 https://lists.debian.org/debian-lts-announce/2022/09/msg00010.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2022/09/msg00010.html
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30560
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2021-30560
archlinux High https://security.archlinux.org/AVG-2166
archlinux High https://security.archlinux.org/AVG-2167
cvssv3.1 8.8 https://security.gentoo.org/glsa/202310-23
generic_textual HIGH https://security.gentoo.org/glsa/202310-23
cvssv3.1 8.8 https://www.debian.org/security/2022/dsa-5216
generic_textual HIGH https://www.debian.org/security/2022/dsa-5216
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30560
https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
https://crbug.com/1219209
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30560
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-30560.yml
https://github.com/sparklemotion/nokogiri
https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.2
https://lists.debian.org/debian-lts-announce/2022/09/msg00010.html
https://www.debian.org/security/2022/dsa-5216
990079 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990079
ASA-202107-30 https://security.archlinux.org/ASA-202107-30
ASA-202107-31 https://security.archlinux.org/ASA-202107-31
AVG-2166 https://security.archlinux.org/AVG-2166
AVG-2167 https://security.archlinux.org/AVG-2167
CVE-2021-30560 https://nvd.nist.gov/vuln/detail/CVE-2021-30560
GHSA-59gp-qqm7-cw4j https://github.com/advisories/GHSA-59gp-qqm7-cw4j
GHSA-fq42-c5rg-92c2 https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-fq42-c5rg-92c2
GLSA-202107-49 https://security.gentoo.org/glsa/202107-49
GLSA-202310-23 https://security.gentoo.org/glsa/202310-23
USN-5575-1 https://usn.ubuntu.com/5575-1/
USN-5575-2 https://usn.ubuntu.com/5575-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.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:R/S:U/C:H/I:H/A:H Found at https://crbug.com/1219209
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:R/S:U/C:H/I:H/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:R/S:U/C:H/I:H/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2021-30560.yml
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:R/S:U/C:H/I:H/A:H Found at https://github.com/sparklemotion/nokogiri
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:R/S:U/C:H/I:H/A:H Found at https://github.com/sparklemotion/nokogiri/releases/tag/v1.13.2
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:R/S:U/C:H/I:H/A:H Found at https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-fq42-c5rg-92c2
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:R/S:U/C:H/I:H/A:H Found at https://lists.debian.org/debian-lts-announce/2022/09/msg00010.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:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30560
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:R/S:U/C:H/I:H/A:H Found at https://security.gentoo.org/glsa/202310-23
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:R/S:U/C:H/I:H/A:H Found at https://www.debian.org/security/2022/dsa-5216
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 0.24479
EPSS Score 0.00084
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:48:38.438772+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/libxslt/CVE-2021-30560.yml 38.0.0