CVE-2026-85180: Ollama redirect validation flaw allows arbitrary host requests during model pulls

# CVE-2026-85180: Ollama redirect validation flaw allows arbitrary host requests during model pulls

https://gcdradar.vercel.app/incidents/cve-2026-85180-ollama-redirect-validation-flaw-allows-arbitr · AIR-2026-1326 · closed 2026-09-03

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-03
- AI role: Attack on AI
- Products: ollama
- CVE ids: CVE-2026-85180
- CVSS: 8.7

## Summary

Ollama fails to validate redirect destinations when pulling tensor-layer models, enabling unauthenticated attackers to direct blob downloads to arbitrary hosts. This flaw permits attackers to cause server requests to internal cloud metadata endpoints.

## What to do

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

## Latest updates

- 2026-09-03: CVE-2026-85180: Ollama fails to validate redirect destinations when pulling tensor-layer models, allowing unauthenticated attackers to redirect… (https://nvd.nist.gov/vuln/detail/CVE-2026-85180)

## Sources

- 2026-09-03 NVD: CVE-2026-85180: Ollama fails to validate redirect destinations when pulling tensor-layer models, allowing unauthenticated attackers to redirect… https://nvd.nist.gov/vuln/detail/CVE-2026-85180

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