CVE-2021-23382 — Regex Denial of Service in Postcss

CWE-1333 — Regex Denial of ServiceCWE-400 — Uncontrolled Resource Consumption6 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 78.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
PostcssDebian Node-postcss
Timeline
PublishedApr 26
Latest updateJan 7

Description

The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* sourceMappingURL=(.*).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5postcss/postcssunspecified — 8.2.13
▶NVDpostcss/postcss8.0.0 — 8.2.13+1
▶npmpostcss/postcss8.0.0 — 8.2.13+1
▶debiandebian/node-postcss< node-postcss 8.2.1+~cs5.3.23-7 (bookworm)

Patches

Patch: github.com ↗Patch: snyk.io ↗Patch: snyk.io ↗

🔴Vulnerability Details

3
GHSA
Regular Expression Denial of Service in postcss↗2022-01-07
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OSV
Regular Expression Denial of Service in postcss↗2022-01-07
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OSV
CVE-2021-23382: The package postcss before 8↗2021-04-26
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📋Vendor Advisories

2
Red Hat
nodejs-postcss: ReDoS via getAnnotationURL() and loadAnnotation() in lib/previous-map.js↗2021-04-26
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Debian
CVE-2021-23382: node-postcss - The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of...↗2021
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