Source: libsoup3 Version: 3.6.6-1 Severity: important Tags: security upstream Forwarded: https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/518 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libsoup3. CVE-2026-12478[0]: | The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the | integer overflow guard inside the if (masked) block, leaving | unmasked server-to-client frames unprotected. A malicious WebSocket | server can send a crafted unmasked frame with a payload length near | UINT64_MAX to trigger an OOB read in a libsoup-based client when | max_incoming_payload_size is set to 0. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-12478 https://www.cve.org/CVERecord?id=CVE-2026-12478 [1] https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/518 Regards, Salvatore
