Is CVE-2026-115931 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-115931 being exploited in the wild.

How severe is CVE-2026-115931?

Critical severity, with a CVSS score of 9.9, published 23 October 2026.

Which products and versions are affected?

GitroomHQ Postiz-App 2.23.0 through 2.25.1.

How is CVE-2026-115931 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-115931?

Check whether you run GitroomHQ Postiz-App at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-115931: GitroomHQ Postiz arbitrary file read and denial of service

CVE-2026-115931 · Severity: critical · CVSS 9.9 · Published 2026-10-23

Postiz is a social media scheduling application that allows users to manage multiple connected channels. An authenticated user can exploit unrestricted backend function calls to read sensitive files from the server—including environment variables containing login secrets and database credentials—or crash the backend entirely. Since self-registration is enabled by default, an attacker needs only to create a free account to conduct the attack.

Technologies: GitroomHQ Postiz-App. Vendors: GitroomHQ.

Quick answers

Is CVE-2026-115931 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-115931 being exploited in the wild.
How severe is CVE-2026-115931?: Critical severity, with a CVSS score of 9.9, published 23 October 2026.
Which products and versions are affected?: GitroomHQ Postiz-App 2.23.0 through 2.25.1.
Is there a fix for CVE-2026-115931?: Yes: fixed in 2.25.2. Until then: Set DISABLE_REGISTRATION=true to prevent new account creation; however, this only limits exposure to existing users and does not address the underlying vulnerability. Any registered user, including those already in the system, can still exploit the issue. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-115931 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-115931?: Check whether you run GitroomHQ Postiz-App at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 2.25.2

Set DISABLE_REGISTRATION=true to prevent new account creation; however, this only limits exposure to existing users and does not address the underlying vulnerability. Any registered user, including those already in the system, can still exploit the issue.

Technical details

The backend does not validate which provider functions a registered user can invoke, allowing calls to internal helper functions never intended for external use. One helper reads arbitrary files from the server filesystem when a channel token is set to a file path; another terminates the backend process. Attack vectors include network access, low privileges (any registered user), and no user interaction required. An attacker gains read access to all files the backend process can read—typically including environment variables with JWT secrets, database credentials, and API keys—and can achieve denial of service.

Affected products

GitroomHQ postiz-app 2.23.0 through 2.25.1

Timeline

2026-10-23: disclosed
2026-10-23: patched: Fix released as version 2.25.2
2026-10-23: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.