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=(.*).
References (3)
Core 3
Core References
Exploit, Patch, Third Party Advisory x_refsource_misc
https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640
Exploit, Patch, Third Party Advisory x_refsource_misc
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641
Patch, Third Party Advisory x_refsource_misc
https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956
Scores
CVSS v3
5.3
EPSS
0.0007
EPSS Percentile
21.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Details
CWE
CWE-1333
Status
published
Products (2)
npm/postcss
8.0.0 - 8.2.13npm
postcss/postcss
< 7.0.36
Published
Apr 26, 2021
Tracked Since
Feb 18, 2026