CVE-2026-10028

Glib-networking: infinite loop in glib-networking gnutls backend allows remote denial of service via circular certificate chain

State: Published
Severity: 4.3 Medium
Published: May 28, 2026
Updated: Jun 26, 2026
Reserved: May 28, 2026

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Description

A flaw was found in glib-networking. A remote attacker can exploit this vulnerability by presenting a specially crafted certificate chain to an application that uses glib-networking with the GnuTLS backend enabled and performs certificate verification. This crafted chain, which contains circular issuer relationships, can cause an infinite loop during certificate verification. The unbounded traversal consumes excessive CPU resources, leading to a denial of service for the affected process or worker.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	redhat

Weaknesses

CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

Affected Products

Product	Versions
Red Hat Enterprise Linux 10Red Hat
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat

References

https://access.redhat.com/security/cve/CVE-2026-10028vdb-entry
RHBZ#2465152issue-tracking
https://gitlab.gnome.org/GNOME/glib-networking/-/work_items/231

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