auth_svc in Caldera before 2.6.5 allows authentication bypass (for REST API requests) via a forged "localhost" string in the HTTP Host header.
https://github.com/mitre/caldera/releases/tag/2.6.5
https://github.com/mitre/caldera/pull/1407
https://github.com/mitre/caldera/issues/1405
https://github.com/mitre/caldera/compare/2.6.4...2.6.5
Source: Mitre, NVD
Published: 2020-03-22
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.00332