high severityConfidence highHistorical record

Ollama model pulls can SSRF internal hosts via blob redirects

Direct answer

Ollama model pulls can SSRF internal hosts via blob redirects, also tracked as CVE-2026-85180 / Ollama tensor blob redirect SSRF is a high-severity threat campaign HOL Guard tracked from Sep 3, 2026 to Sep 3, 2026, verified against 5 primary sources and last reviewed Sep 21, 2026. Active tracking has ended and the record remains published as a permanent historical research record.

Ollama 0.30.0 through 0.33.2 can follow cross-host tensor blob redirects during model pulls, enabling SSRF into internal hosts. Ollama v0.34.2 adds redirect-target validation to the tensor transfer path; upgrade to 0.34.2 or later.

Also tracked as CVE-2026-85180 · Ollama tensor blob redirect SSRF

First observed
Sep 3, 2026
Last observed
Sep 3, 2026
Last reviewed
Sep 21, 2026
Tracking ended
Sep 3, 2026

Record exports

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Uncertainty and limitations

Read the evidence limits before acting on this record.

The upstream issue remains open and the CVE record does not explicitly name the first fixed release; this record treats 0.34.2 as the verified fixed floor based on the released v0.34.1 versus v0.34.2 source-code change.

  • The CVE record lists Ollama 0.30.0 through 0.33.2 as affected.
  • Released Ollama v0.34.1 still returns cross-host redirect targets without redirect-target validation; v0.34.2 adds validateRedirectTarget() before returning a cross-host redirect.
  • HOL blog is operator guidance.

Guard coverage and policy

What Guard's reviewed assertions do and do not claim for this campaign, and the reviewed starting points for defense.

No Guard coverage mapping or campaign-specific policy guidance is published for this record.

Safe next step. Campaign guidance is defensive context. It does not auto-apply policy or claim universal campaign coverage.

Open policy controlsCampaign-specific emergency policy starting point

Timeline

Reviewed events, oldest first, each tied to a verified source.

  1. Disclosure

    CVE-2026-85180 Ollama tensor blob redirect SSRF disclosed.

    Sources:VulnCheck Ollama SSRF advisory·NVD CVE-2026-85180

  2. Update

    HOL Guard published operator coverage for CVE-2026-85180.

    Source:HOL Guard operator write-up

  3. Vendor action

    Ollama v0.34.2 release source adds redirect-target validation to the tensor transfer path; v0.34.1 lacks that check.

    Sources:Ollama v0.34.2 tensor transfer resolver·Ollama v0.34.1 tensor transfer resolver

Publication clock: 442.4 hours from reviewed disclosure timestamp to HOL publication; 24-hour high target; historical backfill outside target.

Reviewed artifacts

The specific artifacts this record concerns, as reviewed. Names and versions are shown as text; a registry link is not recorded here.

  • ollama@0.30.0 through 0.33.2genericpackage

Sources

Every claim on this record is traceable to the sources below.

Campaign questions, answered

Ollama 0 through HOL Guard tracked the campaign from Sep 3, 2026 to Sep 3, 2026.

No. Active tracking ended Sep 3, 2026; this page remains as a labeled historical research record and does not imply the threat is currently active.

The record cites 5 primary sources, names 1 reviewed artifact, and was last fully reviewed Sep 21, 2026 by HOL Guard Security Publishing. Its uncertainty and limitations are stated on the record itself.

Campaign guidance is defensive context. It does not auto-apply policy or claim universal campaign coverage.

The permalink above is permanent. The full record can be downloaded from this page as JSON, an artifact CSV, and a STIX 2.1 bundle, and corrections can be requested through the published correction path on the record. The upstream issue remains open and the CVE record does not explicitly name the first fixed release; this record treats 0.34.2 as the verified fixed floor based on the released v0.34.1 versus v0.34.2 source-code change.

Reviewed in full by HOL Guard Security Publishing.

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Record HGTC-2026-F7E4C4C7