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HIGH severity

CVE-2026-108836 — ALtEr6

HIGHFix: ollama/ollama@dfabde4

CVE-2026-108836 is a high-severity (CVSS 7.3) Server-Side Request Forgery (SSRF) vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

A vulnerability has been found in Ollama up to 0.34.1. The affected element is the function IsValid of the file types/model/name.go of the component Pull API. The manipulation leads…

Published
Updated
Affected
—
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

A vulnerability has been found in Ollama up to 0.34.1. The affected element is the function IsValid of the file types/model/name.go of the component Pull API. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.34.2 is sufficient to fix this issue. The identifier of the patch is dfabde4539e42ba1e1eab50a3a50b88aea7958a0. It is suggested to upgrade the affected component.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-108836 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.

Frequently Asked Questions

A vulnerability has been found in Ollama up to 0.34.1. The affected element is the function IsValid of the file types/model/name.go of the component Pull API. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.34.2 is sufficient to fix this issue. The identifier of the patch is dfabde4539e42ba1e1eab50a3a50b88aea7958a0. It is suggested to upgrade the affected component.
O3 Security · Impact-Aware SCA

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CVE-2026-108836: ALtEr6 SSRF (High 7.3)