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TI-2025-39621 Aliases CVE-2025-64178GHSA-xc93-q32j-cpcg

Jellysweep uses uncontrolled data in image cache API endpoint

Priority MEDIUM 44CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00317 24th percentileScored 2026-11-07
Fix Fixed jellysweep (jon4hz): 0.13.0github.com/jon4hz/jellysweep (Go): 0.13.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jon4hzjellysweepbefore 0.13.00.13.0Patch availableCNA
—github.com/jon4hz/jellysweep (Go)before 0.13.00.13.0Patch availableGHSA-xc93-q32j-cpcg
  • jellysweep Vendorjon4hz Affected before 0.13.0 Fixed in 0.13.0 Patch available CNA
  • github.com/jon4hz/jellysweep (Go) Vendor— Affected before 0.13.0 Fixed in 0.13.0 Patch available GHSA-xc93-q32j-cpcg

Remediation

  • Fix · CNA jellysweep (jon4hz) Fixed in 0.13.0
  • Fix · GHSA-xc93-q32j-cpcg github.com/jon4hz/jellysweep (Go) Fixed in 0.13.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-64178
  2. 2026-10-03 Alias added: GHSA-xc93-q32j-cpcg

References

Advisory 1

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences