CVE-2026-103963
High
Description
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).
SeverityHigh
CVSS7.5
Exploit probability—
Product
Microsoft Azl3 Glib-networking
PublishedOct 30, 2026
First seenNov 4, 2026
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft azl3_glib-networking_2.78.0-2 | No range specified | — |
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