CVE-2025-51471
Ollama vulnerable to Cross-Domain Token Exposure
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2025-51471- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-384, CWE-345
- Updated
- 2026-11-02
EUVDEUVD-2025-22351
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.
- Record
EUVD-2025-22351- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x9hg-5q6g-q3jr
Ollama vulnerable to Cross-Domain Token Exposure
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.
- Record
GHSA-x9hg-5q6g-q3jr- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-345
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2025-51471- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-345, CWE-384
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2025-51471- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-x9hg-5q6g-q3jr
Ollama vulnerable to Cross-Domain Token Exposure
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.
- Record
GHSA-x9hg-5q6g-q3jr- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-345
- Updated
- 2026-11-02
OSVPYSEC-2025-147
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.
- Record
PYSEC-2025-147- CVSS 3.1
- 6.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-02
OSVGO-2025-3824 No score
Ollama vulnerable to Cross-Domain Token Exposure in github.com/ollama/ollama
Ollama vulnerable to Cross-Domain Token Exposure in github.com/ollama/ollama
- Record
GO-2025-3824- Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15405-1 No score
govulncheck-vulndb-0.0.20250730T213748-1.1 on GA media
These are all security issues fixed in the govulncheck-vulndb-0.0.20250730T213748-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15405-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/ollama/ollamaGo |
through 0.9.6 | None known |
github.com/ollama/ollamaGo |
All versions | None known |
govulncheck-vulndbopenSUSE:Tumbleweed From an advisory covering 56 CVEs |
before 0.0.20250730T213748-1.1 | 0.0.20250730T213748-1.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | ajtazer/CVE-2025-51471-POC | 2025-12-24 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-51471 is a medium vulnerability (CVSS 6.9) in Ollama, published July 22, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 18.5%, the 97th percentile. No source names a fixed version.
References
github.com/ollama/ollama
gecko.security/blog/cve-2025-51471
huntr.com/bounties/94eea285-fd65-4e01-a035-f533575ebdc2
nvd.nist.gov/vuln/detail/CVE-2025-51471
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suse.com/security/cve/CVE-2024-44905