GHSA-6jpc-6452-qwq2MediumCVSS 4.8
The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-12478
- https://access.redhat.com/security/cve/CVE-2026-12478
- https://access.redhat.com/security/cve/cve-2026-0716
- https://bugzilla.redhat.com/show_bug.cgi?id=2489655
- https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/518
- https://github.com/advisories/GHSA-6jpc-6452-qwq2