CVE-2025-51471

Ollama vulnerability

CVSS

6.9

EPSS

3.8%

EPSS pct

89th

Exploited

No known

Cross-Domain Token Exposure in server.auth.getAuthorizationToken in Ollama 0.6.7 allows remote attackers to steal authentication tokens and bypass access controls via a malicious realm value in a WWW-Authenticate header returned by the /api/pull endpoint.

Affected vendor

Ollama

Affected product

Ollama

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

Weakness type (CWE)

CWE-345 — Insufficient Verification of Data Authenticity
CWE-384 — Session Fixation

Published

2025-07-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, low impact to integrity.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2025-51471

Confirm whether Ollama Ollama is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-51471.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-51471

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