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VulnerabilityPublished

CVE-2025-64178: jon4hz jellysweep · Server-Side Request Forgery (SSRF)

Affects jon4hz jellysweepSource CVE Database V5

0

Not known to be exploited · CVSS 8.9 High : upgrade to 0.13.0 soon.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 4.0 base score
8.9High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.13.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade jon4hz/jellysweep to 0.13.0.

Affected software

ProductAffectedFixed in
GitHubjon4hz/jellysweeppkg:github/jon4hz/jellysweepOther threatsAffected
  • <0.13.0
Fixed in
  • 0.13.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately upgrade jellysweep to version 0.13.0 or later, where this SSRF vulnerability is fixed. Until upgrading is possible, restrict access to the /api/images/cache endpoint to trusted users only and monitor authenticated user activity for suspicious URL parameters. Implement network-level controls to limit the jellysweep server's ability to make outbound HTTP requests to untrusted or internal IP ranges, using firewall rules or egress filtering. Employ web application firewalls (WAFs) that can detect and block SSRF patterns, especially requests containing suspicious URL parameters. Conduct regular audits of user accounts with access to jellysweep to ensure only authorized personnel have credentials. Additionally, consider isolating the jellysweep service in a segmented network zone with minimal access to sensitive internal resources to reduce potential impact. Logging and alerting on unusual outbound requests from the jellysweep server can help detect exploitation attempts early.

Description

Jellysweep is a cleanup tool for the Jellyfin media server. In versions 0.12.1 and below, /api/images/cache, used to download media posters from the server, accepted a URL parameter that was directly passed to the cache package, which downloaded the poster from this URL. This URL parameter can be used to make the Jellysweep server download arbitrary content. The API endpoint can only be used by authenticated users. This issue is fixed in version 0.13.0.

References

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