CVE-2026-115931 Arbitrary file read and backend crash through unrestricted provider method calls
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115931?
CVE-2026-115931 is a critical vulnerability in GitroomHQ postiz-app, published on 23 Oct 2026.
Official description
Postiz lets a signed-in user ask the backend to run a function on one of their connected channels. The backend did not restrict which functions can be requested, so a user could call internal helper functions that were never meant to be reachable from the web interface.
One of those helpers reads a file from the server's disk. A user who connects a channel whose stored token is a file path can have the backend return the contents of any file it can read, including its environment, which holds the secret used to sign login sessions, the database address and the credentials of connected services. Another helper makes the backend process exit with a single request. Self-registration is open by default, so no existing account and no action by another user is needed.
Which versions are affected by CVE-2026-115931?
How do I fix CVE-2026-115931?
No fix has been published for CVE-2026-115931 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115931 being exploited?
There is no known exploitation of CVE-2026-115931 in the wild and no public exploit code.
Sources
Also known as GHSA-h5r5-h782-vqvp.