Critical 9.8Published Dec 17, 2025

CVE-2025-63389A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3.

Updated under an hour ago (Oct 27, 2026, 7:20 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for ollama

Exploited in the last 30 days

A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including v0.12.3. The platform exposes multiple API endpoints without requiring authentication, enabling remote attackers to perform unauthorized model management operations.

CVSS: 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Modified
Record last updated: Jan 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ollama ollama ollama:ollama	through 0.12.3	NVD

References

References

https://github.com/ollama/ollama/issues	issue-tracking
https://gist.github.com/Cristliu/48dae561696374744d9fced07a544ecd	third-party-advisory
https://gist.github.com/Cristliu/b6f4d070fb27932f581be1aadc0923e7

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.