CVE-2021-23382

unknown

Published 2022-01-07 · Modified 2025-01-14

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4 NEW

—

not yet in upstream

VIR risk

—

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=(.*).

Predictions

Exploit likelihood

30%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`8.2.1+~cs5.3.23-7`
sid	Fixed	`8.2.1+~cs5.3.23-7`
forky	Fixed	`8.2.1+~cs5.3.23-7`
bullseye	Fixed	`8.2.1+~cs5.3.23-7`
bookworm	Fixed	`8.2.1+~cs5.3.23-7`

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	postcss	`>=8.0.0,<8.2.13`	`8.2.13`
npm	postcss	`<7.0.36`	`7.0.36`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.