CVE-2026-48070 Docmost: Avatar URL path traversal in avatar cleanup leads to arbitrary local file deletion
Authenticated users can delete arbitrary local files via path traversal in avatar cleanup on local-storage deployments.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-48070?
CVE-2026-48070 is a high-severity path traversal vulnerability in docmost, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Docmost is open-source collaborative wiki and documentation software. Prior to 0.80.1, authenticated users can store attacker-controlled avatarUrl values that are later reused by avatar cleanup without confinement to the intended directory on local-storage deployments. A low-privileged user can cause deletion of arbitrary local files or directories reachable by the Docmost service account. This issue is fixed in version 0.80.1.
Weakness: CWE-22
Which versions are affected by CVE-2026-48070?
How do I fix CVE-2026-48070?
No fix has been published for CVE-2026-48070 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-2026-48070 being exploited?
There is no known exploitation of CVE-2026-48070 in the wild and no public exploit code.
Sources
Also known as GHSA-95f8-h5hf-8248.