CVE-2026-12566

LowCVSS 3.1/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 3.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-918

Affected software

No affected versions have been published.

Timeline

Published: Jun 17, 2026
Last modified: Oct 26, 2026
NVD status: Deferred

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