CVE-2026-31852
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.
- Affected products
- Code-Quality.Yml, Jellyfin, Jellyfin-Ios
- Jellyfin
- All versions
- CVSS 3.1
- 10.0 CRITICAL
- EPSS
- 0.4% (37th percentile)
- Weakness
- CWE-269
- NVD status
- Analyzed
- Published
- 2026-03-11
No indexed exploits for CVE-2026-31852 yet
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No exploit for CVE-2026-31852 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.