CVE-2026-31852 is a critical vulnerability affecting the Jellyfin open-source media system, specifically within the GitHub Actions workflows of its jellyfin/jellyfin-ios repository, allowing arbitrary code execution. This misconfiguration, not a code vulnerability, can be triggered via pull requests from forked repositories with low attack complexity. Rated 9.8 Critical, successful exploitation could lead to full repository takeover, exfiltration of highly privileged secrets, Apple App Store supply chain attacks, and potential compromise of the entire Jellyfin organization. There is currently no evidence of active exploitation, nor are public exploit codes or significant community discussion available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:jellyfin:jellyfin:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.