GitHub Advisoryadvisory · Go

GHSA-wrh5-cmwx-q2qr Ollama Server Vulnerable to Denial of Service (DoS) Attack

HIGH Published 2025-05-16 Modified 2026-06-06 Official page ↗
Aliases
CVE-2025-1975
Ecosystem
Go
Packages
github.com/ollama/ollama
Severity
High
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-129
Reviewed
2025-05-17

Affected packages

• Go github.com/ollama/ollama: <= 0.5.11 (no fix yet)

Description

A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.

Related

Alias · CVE (1)

  • CVE-2025-1975 A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the… vulnerability

Weakness · CWE (1)

  • CWE-129 Improper Validation of Array Index weakness

References