Is postcss affected by CVE-2026-41305?

npm postcss is affected in <8.5.10.

Is CVE-2026-41305 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

medium

CVE-2026-41305

Q: Is CVE-2026-41305 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.2%.

npm · postcss

Summary

PostCSS has XSS via Unescaped </style> in its CSS Stringify Output

Severity: medium
EPSS: 0.2% (p9)
Also known as: GHSA-qx2v-qp2m-jg93
Published: 2026-04-24

References

https://github.com/postcss/postcss/security/advisories/GHSA-qx2v-qp2m-jg93
https://nvd.nist.gov/vuln/detail/CVE-2026-41305
https://github.com/postcss/postcss

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.