🛡️ CVE-2026-31852
🔴 CVSS 10.0 — Critical ✅ No Known Exploit CWE-269 NVD
10.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios is vulnerable to arbitrary code execution via pull requests from forked repositories. Due to the workflow's elevated permissions (nearly all write permissions), this vulnerability enables full repository takeover of jellyfin/jellyfin-ios, exfiltration of highly privileged secrets, Apple App Store supply chain attack, GitHub Container Registry (ghcr.io) package poisoning, and full jellyfin organization compromise via cross-repository token usage. Note: This is not a code vulnerability, but a vulnerability in the GitHub Actions workflows. No new version is required for this GHSA and end users do not need to take any actions.

Details

Severity CRITICAL
CVSS Score 10.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-269
Public Exploit ✅ No
Source NVD
Published 2026-03-11
Updated 2026-06-02
Modified 2026-03-20

Affected Packages

Software From version Fixed in
jellyfin

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