CVE-2026-112138 diem-project diem dmCodeEditor actions.class.php join path traversal
Remote attackers can exploit a path traversal flaw in the dmCodeEditor component to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-112138?
CVE-2026-112138 is a medium-severity path traversal vulnerability in diem-project diem, published on 19 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw has been found in diem-project diem up to 5.1.3. The impacted element is the function dmOs::join of the file dmFrontPlugin/modules/dmCodeEditor/actions/actions.class.php of the component dmCodeEditor. Executing a manipulation can lead to path traversal. The attack can be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-22
Which versions are affected by CVE-2026-112138?
How do I fix CVE-2026-112138?
No fix has been published for CVE-2026-112138 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-2026-112138 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-112138 exists.
Sources
Also known as GHSA-46mr-p5vj-rv3q.