This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-7531 →
DEBIAN-CVE-2026-7531
Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server...
Original description
The description as published by the source.
Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 (released in 5.9.1): a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
wolfssl
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
wolfssl
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org