CVE-2026-13533 agentejo Cockpit CMS htaccess config.yaml YAMLLoad file access

Medium 6.9 Published Updated

Remote attackers can access sensitive files or directories via the htaccess handler in Cockpit CMS if specific configuration settings are not properly secured.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-13533?

CVE-2026-13533 is a medium-severity path traversal vulnerability in agentejo Cockpit CMS, published on 29 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A security vulnerability has been detected in agentejo Cockpit CMS up to 0.12.2. Affected by this issue is the function Spyc::YAMLLoad of the file /config/config.yaml of the component htaccess Handler. Such manipulation leads to files or directories accessible. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Configuration settings should be changed. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-552, CWE-425

Which versions are affected by CVE-2026-13533?

How do I fix CVE-2026-13533?

No fix has been published for CVE-2026-13533 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-13533 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13533 exists.

Sources

Also known as GHSA-q4hh-wg87-823q.

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