CVE-2026-85518 Openscap: openscap: arbitrary file write via path traversal in source datastream decomposition
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-85518?
CVE-2026-85518 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, published on 21 Oct 2026.
Official description
A flaw was found in OpenSCAP. When decomposing a Source DataStream (SDS) file, the application does not properly validate relative file path attributes, leading to a path traversal vulnerability. An attacker can exploit this flaw by tricking a user or automated system into decomposing a crafted datastream containing directory traversal sequences. Successful exploitation allows unauthorized file creation or modification outside the intended target directory with the permissions of the executing process.
Weakness: CWE-22
Which versions are affected by CVE-2026-85518?
Linux distribution packages (1)
openscap openSUSE:Tumbleweed | All versions | 1.4.6-1.1 |
How do I fix CVE-2026-85518?
Upgrade to a fixed version.
Is CVE-2026-85518 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-85518 exists.
Sources
Also known as DEBIAN-CVE-2026-85518, ECHO-2455-2827-339c, GHSA-vp9g-975v-q4cm, openSUSE-SU-2026:12249-1.