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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Ollama Subscribe
Ollama Subscribe

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/ollama/ollama cve-icon cve-icon
https://github.com/ollama/ollama/blob/v0.33.2/x/transfer/download.go cve-icon cve-icon
https://github.com/ollama/ollama/issues/17041 cve-icon cve-icon
https://www.vulncheck.com/advisories/ollama-0.30.0-through-0.33.2-ssrf-via-cross-host-tensor-blob-redirect cve-icon cve-icon
History

Thu, 03 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 03 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Ollama 0.30.0 through 0.33.2 SSRF via Cross-Host Tensor Blob Redirect
First Time appeared Ollama
Ollama ollama
Weaknesses CWE-918
CPEs cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*
Vendors & Products Ollama
Ollama ollama
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-03T14:41:50.099Z

Reserved: 2026-09-03T11:08:17.526Z

Link: CVE-2026-85180

cve-icon Vulnrichment

Updated: 2026-09-03T14:41:34.012Z

cve-icon NVD

Status : Received

Published: 2026-09-03T15:17:39.250

Modified: 2026-09-03T15:17:39.250

Link: CVE-2026-85180

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T15:45:05Z

Weaknesses