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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-3mp7-vp6j-2mxx BBOT: Server-Side Request Forgery (SSRF) in docker_pull module via WWW-Authenticate realm parsing
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 21 Jun 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Black Lantern Security
Black Lantern Security bbot
Vendors & Products Black Lantern Security
Black Lantern Security bbot

Thu, 18 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: BLSOPS

Published:

Updated: 2026-06-18T12:50:35.439Z

Reserved: 2026-06-17T21:45:54.435Z

Link: CVE-2026-12566

cve-icon Vulnrichment

Updated: 2026-06-18T12:50:31.999Z

cve-icon NVD

Status : Deferred

Published: 2026-06-17T23:17:03.100

Modified: 2026-06-22T17:45:43.473

Link: CVE-2026-12566

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-20T22:56:51Z

Weaknesses