CVE-2023-26253 Memory corruption in n/a

High 7.5 Published 21 Feb 2023 Updated 14 Mar 2025

A stack-based buffer over-read in GlusterFS fuse-bridge allows attackers to cause denial of service or potentially execute code.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2023-26253?

CVE-2023-26253 is a high-severity memory corruption vulnerability in n/a, published on 21 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Gluster GlusterFS 11.0, there is an xlators/mount/fuse/src/fuse-bridge.c notify stack-based buffer over-read.

Weakness: CWE-125

Which versions are affected by CVE-2023-26253?

It affects 1 product.

Products include Gluster Glusterfs.

How do I fix CVE-2023-26253?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-26253 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-26253 exists.

Sources

Also known as AZL-38152, DEBIAN-CVE-2023-26253, GHSA-696f-v7g7-q758, OESA-2023-1170, UBUNTU-CVE-2023-26253, USN-5989-1 and 1 more.