CVE-2026-42298

Postiz is an AI social media scheduling tool. Prior to commit da44801, a "Pwn Request" vulnerability in the Build and Publish PR Docker Image workflow (.github/workflows/pr-docker-build.yml) allows any unauthenticated user to execute arbitrary code during the Docker build process and exfiltrate a highly privileged GITHUB_TOKEN (write-all permissions). This can be achieved simply by opening a Pull Request from a fork with a maliciously modified Dockerfile.dev. This issue has been patched via commit da44801.

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/gitroomhq/postiz-app/commit/da448012dd87e94944cbe83a38e7fd023269ec46	URL Repurposed
https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-v975-9h5p-xhm4	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gitroom:postiz:*:*:*:*:*:*:*:*

History

01 Jun 2026, 16:42

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gitroom:postiz::::::::
First Time		Gitroom Gitroom postiz
References	~~() https://github.com/gitroomhq/postiz-app/commit/da448012dd87e94944cbe83a38e7fd023269ec46 -~~	() https://github.com/gitroomhq/postiz-app/commit/da448012dd87e94944cbe83a38e7fd023269ec46 - URL Repurposed
References	~~() https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-v975-9h5p-xhm4 -~~	() https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-v975-9h5p-xhm4 - Vendor Advisory

08 May 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-08 23:16

Updated : 2026-06-01 16:42

NVD link : CVE-2026-42298

Mitre link : CVE-2026-42298

CVE.ORG link : CVE-2026-42298

JSON object : View

Products Affected

gitroom

postiz

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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