CVE-2026-12566 — SSRF via unvalidated WWW-Authenticate realm in docker_pull module
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…
Published: 2026-06-17 · CVSS: 3.1 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7