High advisory for A flaw was found in glib-networking
CVE-2026-103963 · Reported 30 Oct 2026
Full advisory details, affected packages, severity context, and original source.
Affected technology
Advisory overview
A flaw was found in glib-networking. When establishing connections using Transport Layer Security (TLS) version 1.3, the client-side session cache does not limit the number of session tickets retained for a single host. A malicious server can exploit this by sending excessive session ticket messages, causing the client application to continuously consume memory. This unbounded memory growth can exhaust system memory, resulting in a Denial of Service (DoS).
