CVE-2026-53976 OpenChamber 1.11.7 Path Traversal File Read via allowOutsideWorkspace Parameter
Unauthenticated attackers can read arbitrary files, including secrets, by bypassing workspace checks, leading to potential account takeover.
- 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-2026-53976?
CVE-2026-53976 is a critical path traversal vulnerability in Bohdan Triapitsyn OpenChamber, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenChamber 1.11.7 contains a path traversal vulnerability in the file-serving endpoints /api/fs/read, /api/fs/stat, and /api/fs/raw that allows unauthenticated remote attackers to read arbitrary files by supplying the allowOutsideWorkspace=true query parameter alongside an absolute path, bypassing the workspace boundary check in resolveReadPathFromContext. Attackers can exploit the vacuous isPathWithinRoot guard to read sensitive files such as the JWT signing secret, SSH private keys, API credentials, and environment variables, enabling full authentication bypass by forging session cookies on password-protected deployments.
Weakness: CWE-22
Which versions are affected by CVE-2026-53976?
How do I fix CVE-2026-53976?
No fix has been published for CVE-2026-53976 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-2026-53976 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53976 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-9wgq-4cmq-jhvv.