The docker_pull module uses the realm parameter from a Docker registry's WWW-Authenticate response header as the authentication endpoint without validation. An attacker in a man-in-the-middle position between bbot and a Docker registry could modify this header to redirect the authentication request to an arbitrary endpoint, potentially leaking authentication tokens.
Metrics
Affected Vendors & Products
References
History
Thu, 18 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Thu, 18 Jun 2026 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The docker_pull module uses the realm parameter from a Docker registry's WWW-Authenticate response header as the authentication endpoint without validation. An attacker in a man-in-the-middle position between bbot and a Docker registry could modify this header to redirect the authentication request to an arbitrary endpoint, potentially leaking authentication tokens. | |
| Title | SSRF via unvalidated WWW-Authenticate realm in docker_pull module | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: BLSOPS
Published:
Updated: 2026-06-18T12:50:35.439Z
Reserved: 2026-06-17T21:45:54.435Z
Link: CVE-2026-12566
Updated: 2026-06-18T12:50:31.999Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-18T18:15:02Z