Vulnerability in Postcss

CVE-2021-23368

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.

EPSS: 0.035 (88.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

  • Postcss
  • N/a Postcss — versions 7.0.0, unspecified

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-23368?
CVE-2021-23368 is a medium-severity vulnerability in Postcss. CVSS score: 5.3/10. Published 2021-04-12.
How severe is CVE-2021-23368?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-23368 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.