CVE-2025-0239 — Alt-Svc ALPN validation failure when redirected
When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability was fixed in Firefox 134, Firefox…
Published: 2025-01-07 · CVSS: 4.0 · CVSS 3.1
When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7