CVE-2026-103963

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).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-103963
https://bugzilla.redhat.com/show_bug.cgi?id=2465656
https://gitlab.gnome.org/GNOME/glib-networking/-/merge_requests/288

Configurations

No configuration.

History

30 Oct 2026, 05:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 05:16

Updated : 2026-10-30 05:16

NVD link : CVE-2026-103963

Mitre link : CVE-2026-103963

CVE.ORG link : CVE-2026-103963

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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