CVE-2026-31852— Jellyfin Possible Organization/Secret Compromise from dangerous CI implementation
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I. Basic Information for CVE-2026-31852
Vulnerability Information
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Vulnerability Title
Jellyfin Possible Organization/Secret Compromise from dangerous CI implementation
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Jellyfin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jellyfin是Jellyfin开源的一个免费软件媒体系统。可让您控制媒体的管理和流式传输。它是专有Emby和Plex的替代产品，可以通过多个应用程序将专用服务器中的媒体提供给最终用户设备。 Jellyfin存在安全漏洞，该漏洞源于GitHub Actions工作流权限过高，可能导致任意代码执行和仓库接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| jellyfin | code-quality.yml | < 109217e75f38394b2f6e46e25dfe5a721203d3c8 | - |
II. Public POCs for CVE-2026-31852
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: jellyfin
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Jellyfin: Potential Application DoS from excessively large S - CVE-2026-35033
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Jellyfin: Potential SSRF + Arbitrary file read via LiveTV M3 - CVE-2026-35031
Jellyfin: Potential RCE via subtitle upload path traversal + - CVE-2025-31499
Jellyfin Vulnerable to Argument Injection in FFmpeg
Same weakness: CWE-269
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V. Comments for CVE-2026-31852
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