How severe is CVE-2025-64178?

CVE-2025-64178 has a CVSS 4.0 base score of 8.9, rated high severity.

Is CVE-2025-64178 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-64178?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-64178 have an EU (EUVD) identifier?

Yes. CVE-2025-64178 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37862.

When was CVE-2025-64178 published?

CVE-2025-64178 was published on 2025-11-06 and last updated on 2026-06-17.

CVE-2025-64178

CVE-2025-64178 is a high-severity vulnerability with a CVSS 4.0 base score of 8.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 4.0 base score 8.9)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37862
Weakness: CWE-918
Published: 2025-11-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-64178?: 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.
How severe is CVE-2025-64178?: CVE-2025-64178 has a CVSS 4.0 base score of 8.9, rated high severity.
Is CVE-2025-64178 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-64178?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-64178 have an EU (EUVD) identifier?: Yes. CVE-2025-64178 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37862.
When was CVE-2025-64178 published?: CVE-2025-64178 was published on 2025-11-06 and last updated on 2026-06-17.

References

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