Jellyfin is an open source self hosted media server. Versions before 10.10.7 are vulnerable to argument injection in FFmpeg. This can be leveraged to possibly achieve remote code execution by anyone with credentials to a low-privileged user. This vulnerability was previously reported in CVE-2023-49096 and patched in version 10.8.13, but the patch can be bypassed. The original fix sanitizes some parameters to make injection impossible, but certain unsanitized parameters can still be used for argument injection. The same unauthenticated endpoints are vulnerable: /Videos//stream and /Videos//stream., likely alongside similar endpoints in AudioController. This argument injection can be exploited to achieve arbitrary file write, leading to possible remote code execution through the plugin system. While the unauthenticated endpoints are vulnerable, a valid itemId is required for exploitation and any authenticated attacker could easily retrieve a valid itemId to make the exploit work. This vulnerability is patched in version 10.10.7.
CVE-2025-31499
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 49.8%
- KEV
- Not listed
Published
April 15, 2025
Last Modified
October 6, 2025
References (2)
- security-advisories@githubhttps://github.com/jellyfin/jellyfin/commit/79f3ce53257c5291887cd52d8ac735b5252c9a97
- security-advisories@githubhttps://github.com/jellyfin/jellyfin/security/advisories/GHSA-2c3c-r7gp-q32m
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 49× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-88
- CVE-2018-3856EG 9.9CRITICAL
- CVE-2020-28026EG 9.8EPSS 95%CRITICAL
- CVE-2020-21224EG 9.8EPSS 98%CRITICAL
- CVE-2020-25494EG 9.8EPSS 98%CRITICAL
- CVE-2020-5648EG 9.8CRITICAL
- CVE-2020-15692EG 9.8EPSS 90%CRITICAL
- CVE-2020-5599EG 9.8CRITICAL
- CVE-2020-12641EG 9.8 KEVEPSS 100%CRITICAL
- CVE-2019-12148EG 9.8CRITICAL
- CVE-2019-12147EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2025-31499?
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Dependency Blast Radius
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