Skip to content
Fencer Vulns
medium 4.3

CVE-2026-10028 json

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

published 2026-05-28 5 mo ago modified 2026-11-06 2 d ago also EUVD-2026-33166

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

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.

Patch / fix

  • glib-networking Debian 14 2.90.0-1

debian advisories DEBIAN-CVE-2026-10028

  • glib-networking SLE Module for Basesystem 15 SP7 2.78.0-150600.3.3.1
  • glib-networking SLE Micro 5.5, SLE Micro 5.4, SLE Micro 5.3 2.70.1-150400.3.3.1
  • glib-networking SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.80.1-160000.3.1
  • glib-networking Linux Micro 6.1 2.78.0-slfo.1.1_2.1
  • glib-networking Linux Micro 6.0 2.76.0-4.1
  • glib-networking SLES LTSS Extended Security 12 SP5 2.48.2-6.6.1

suse advisories SUSE-SU-2026:3121-1SUSE-SU-2026:3032-1SUSE-SU-2026:2810-1SUSE-SU-2026:22230-1SUSE-SU-2026:22297-1SUSE-SU-2026:22135-1

  • glib-networking openSUSE Leap 16.0 2.80.1-160000.3.1
  • glib-networking openSUSE Tumbleweed 2.80.1-3.1

opensuse advisories openSUSE-SU-2026:21130-1openSUSE-SU-2026:11010-1

  • glib-networking Azure Linux 3.0 2.78.0-2

azure linux advisories AZL-89301

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-10028 updated cvss 4.3

glib-networking: Infinite loop in glib-networking GnuTLS backend allows remote denial of service via circular certificate chain

  • Red Hat Enterprise Linux 6 glib-networking Red Hat Enterprise Linux 7 glib-networking, glib-networking-tests Red Hat Enterprise Linux 8 glib-networking Red Hat Enterprise Linux 9 glib-networking Red Hat Enterprise Linux 10 glib-networking
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.