---
title: "CVE-2026-115931: Postiz - Broken Access Control"
description: "Postiz contains a broken access control vulnerability caused by unrestricted function calls on connected channels, letting signed-in users read arbitrary files or cause backend process exit, exploit requires user registration."
url: https://panop.io/threat-heartbeat/CVE-2026-115931/
---

# CVE-2026-115931 Postiz - Broken Access Control

Postiz contains a broken access control vulnerability caused by unrestricted function calls on connected channels, letting signed-in users read arbitrary files or cause backend process exit, exploit requires user registration.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.65% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-115931)

## Details

Type

Broken Access Control

Impact

Information Disclosure, Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

23 October 2026

Updated

25 October 2026

Weakness

[CWE-73](https://cwe.mitre.org/data/definitions/73.html)

## Vendor fix

Restrict accessible backend functions and validate user inputs; update to latest version with access control fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-115931](https://nvd.nist.gov/vuln/detail/CVE-2026-115931)
- [https://gadvisory.org/advisories/PSA-2026-JNXM56](https://gadvisory.org/advisories/PSA-2026-JNXM56)
- [https://github.com/gitroomhq/postiz-app](https://github.com/gitroomhq/postiz-app)
- [https://github.com/gitroomhq/postiz-app/commit/9383f5be4d310c346e33a3748a9a7ded64c96fed](https://github.com/gitroomhq/postiz-app/commit/9383f5be4d310c346e33a3748a9a7ded64c96fed)
- [https://github.com/gitroomhq/postiz-app/releases/tag/v2.25.1](https://github.com/gitroomhq/postiz-app/releases/tag/v2.25.1)
- [https://github.com/gitroomhq/postiz-app/releases/tag/v2.25.2](https://github.com/gitroomhq/postiz-app/releases/tag/v2.25.2)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)