# CVE-2026-10028: glib-networking: A flaw was found in glib-networking

CVE-2026-10028 is fixed in glib-networking on 1 platform, first by DEBIAN-CVE-2026-10028, released May 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-10028
- Priority: Routine
- CVSS: 4.3 (medium)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 28, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | glib-networking Debian 14 | 2.90.0-1 | [DEBIAN-CVE-2026-10028](https://patchblox.com/security/data/fix/linux/debian-cve-2026-10028.md) | May 28, 2026 |
| Linux | glib-networking opensuse-leap 16.0 | 2.80.1-160000.3.1 | [OPENSUSE-SU-2026:21130-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21130-1.md) | Jun 20, 2026 |
| Linux | glib-networking sles 15.7 | 2.78.0-150600.3.3.1 | [SUSE-SU-2026:3032-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3032-1.md) | Jul 15, 2026 |
| Linux | glib-networking sles 16.0 | 2.80.1-160000.3.1 | [SUSE-SU-2026:22297-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22297-1.md) | Jun 20, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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