CVE-2025-63389: Authentication bypass in Ollama API endpoints

# CVE-2025-63389: Authentication bypass in Ollama API endpoints

https://gcdradar.vercel.app/incidents/cve-2025-63389-authentication-bypass-in-ollama-api-endpoints · AIR-2025-0045 · closed 2025-12-18

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-12-18
- AI role: Attack on AI
- Products: Ollama
- CVE ids: CVE-2025-63389
- CVSS: 9.3

## Summary

Ollama versions up to v0.12.3 expose multiple API endpoints without authentication. This allows remote attackers to perform unauthorized model management operations.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-12-18: CVE-2025-63389: Ollama Platform has missing authentication enabling attackers to perform model management operations (https://github.com/advisories/GHSA-f6mr-38g8-39rg)
- 2025-12-18: CVE-2025-63389: A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including… (https://nvd.nist.gov/vuln/detail/CVE-2025-63389)

## Sources

- 2025-12-18 NVD: CVE-2025-63389: A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions prior to and including… https://nvd.nist.gov/vuln/detail/CVE-2025-63389
- 2025-12-18 GitHub Advisory Database: CVE-2025-63389: Ollama Platform has missing authentication enabling attackers to perform model management operations https://github.com/advisories/GHSA-f6mr-38g8-39rg

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.