CVE-2021-23368

Regular Expression Denial of Service (ReDoS)

The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

Affected

postcss

CVSS v3.1 NVD

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

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

3.51% chance of exploitation in the next 30 days, 89th percentile

Published

2021-04-12

Updated

2024-09-16

Proof-of-concept exploits (2)

• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1244795
• https://snyk.io/vuln/SNYK-JS-POSTCSS-1090595

Security advisories

• postcss/postcss/commit/8682b1e4e328432ba692bed52326e84439cec9e4
• advisories/GHSA-hwj9-h5mp-3pm3

References

• CVE Record
• NVD entry