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Vulnerability record · CVE-2025-51471 · published 22 July 2025

CVE-2025-51471: Ollama insufficient verification of data authenticity vulnerability

Ollama · Ollama

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.

6.9 CVSS 3.1 Medium EPSS 15% · top 3.3% CWE-345 · Insufficient verification of data authenticityCWE-384 · CWE-384
6.9CVSS 3.1 base score
15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ollama/ollama Product
https://github.com/ollama/ollama/pull/10750 ExploitIssue Tracking
https://huntr.com/bounties/94eea285-fd65-4e01-a035-f533575ebdc2
https://www.gecko.security/blog/cve-2025-51471 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-51471), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.