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Vulnerability details: VCID-a8y9-84au-zyar
Vulnerability ID VCID-a8y9-84au-zyar
Aliases CVE-2021-23382
GHSA-566m-qj78-rww5
Summary
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-400 Uncontrolled Resource Consumption
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-1333 Inefficient Regular Expression Complexity
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2021-23382
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-566m-qj78-rww5
cvssv3.1 5.3 https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956
generic_textual MODERATE https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956
cvssv3.1 5.3 https://github.com/postcss/postcss/releases/tag/7.0.36
generic_textual MODERATE https://github.com/postcss/postcss/releases/tag/7.0.36
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2021-23382
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2021-23382
cvssv3.1 5.3 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641
generic_textual MODERATE https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641
cvssv3.1 5.3 https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640
generic_textual MODERATE https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-23382
https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956
https://github.com/postcss/postcss/releases/tag/7.0.36
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641
https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640
CVE-2021-23382 https://nvd.nist.gov/vuln/detail/CVE-2021-23382
GHSA-566m-qj78-rww5 https://github.com/advisories/GHSA-566m-qj78-rww5
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956
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:L Found at https://github.com/postcss/postcss/releases/tag/7.0.36
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:L Found at https://nvd.nist.gov/vuln/detail/CVE-2021-23382
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:L Found at https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641
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:L Found at https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640
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 0.21782
EPSS Score 0.00071
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T22:08:04.727814+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 38.6.0