Bug 2528051 (CVE-2026-85180)

Summary: CVE-2026-85180 github.com/ollama/ollama: Ollama: Server-Side Request Forgery (SSRF) via redirect validation bypass
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Ollama. This vulnerability, known as Server-Side Request Forgery (SSRF), occurs because Ollama fails to validate redirect destinations when pulling tensor-layer models. An unauthenticated attacker can exploit this by controlling a registry and serving a malicious tensor-layer manifest, causing the server to issue GET requests to internal hosts, including cloud metadata endpoints. This could lead to sensitive information disclosure from the affected system.
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Description OSIDB Bzimport 2026-09-03 14:28:21 UTC
Ollama fails to validate redirect destinations when pulling tensor-layer models, allowing unauthenticated attackers to redirect blob downloads to arbitrary hosts. An attacker can control a registry, serve a malicious tensor-layer manifest, and cause the server to issue GET requests to internal hosts including cloud metadata endpoints.