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CVE-2026-10028

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

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.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Gnome Redhat
Products
Glib-networking Enterprise Linux Rhel Els
CVE-2026-2574

glib-networking: glib-networking: Denial of Service and information disclosure via crafted TLS client-CA list

A flaw was found in glib-networking. A malicious Transport Layer Security (TLS) server can exploit an out-of-bounds read and invalid free vulnerability when a client using the OpenSSL backend connects. By advertising a specially crafted client-CA list, the server can trigger an issue where memory is accessed outside of its allocated buffer and subsequently freed incorrectly. This can lead to a denial-of-service and potentially disclose limited heap memory.

CVSS 3.1 · 5.4 Medium EPSS n/a KEV · Not listed
Vendors
Gnome
Products
Glib-networking
CVE-2020-13645

glib-networking: GTlsClientConnection silently ignores unset server identity

In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to specify the expected server identity. This is in contrast to its intended documented behavior, to fail the certificate verification. Applications that fail to provide the server identity, including Balsa before 2.5.11 and 2.6.x before 2.6.1, accept a TLS certificate if the certificate is valid for any host.

CVSS 3.1 · 6.5 Medium EPSS 2.0% KEV · Not listed
Vendors
Broadcom Canonical Fedoraproject and 2 more
Products
Fabric Operating System Ubuntu Linux Fedora and 3 more