CVE-2025-0239

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-0239

Severity

Unknown

Description

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

References

https://images.chainguard.dev/security/CGA-p9c4-f525-g92c
https://github.com/advisories/GHSA-p4q7-g7ff-823j
https://images.chainguard.dev/security/CGA-hrwf-5wxm-58jc
https://www.mozilla.org/security/advisories/mfsa2025-01/
https://www.mozilla.org/security/advisories/mfsa2025-02/
https://www.mozilla.org/security/advisories/mfsa2025-04/
https://www.mozilla.org/security/advisories/mfsa2025-05/
https://bugzilla.mozilla.org/show_bug.cgi?id=1929156
https://security-tracker.debian.org/tracker/CVE-2025-0239

Affected packages

Advisories are based on vulnerability information provided by Grype from Anchore. Learn how Chainguard creates security advisories.

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CVE-2025-0239

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