Vault Token Leaked to Backends via Authorization: Bearer Passthrough Header
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 0.4%
probabilidad de explotación
0.4%top 65% de las CVE
explotación observada
noninguna fuente lo reporta
If a Vault auth mount is configured to pass through the "Authorization" header, and the "Authorization" header is used to authenticate to Vault, Vault forwarded the Vault token to the auth plugin backend. Fixed in 2.0.0, 1.21.5, 1.20.10, and 1.19.16.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Referencias
https://access.redhat.com/security/cve/CVE-2026-4525https://bugzilla.redhat.com/show_bug.cgi?id=2459107https://discuss.hashicorp.com/t/hcsec-2026-07-vault-may-expose-tokens-to-auth-plugins-due-to-incorrect-header-sanitization/77344https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4525.json