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CVE-2026-45808 (GCVE-0-2026-45808)

Vulnerability from cvelistv5 – Published: 2026-08-07 21:15 – Updated: 2026-08-13 18:42
VLAI
Title
OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL
Summary
OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented `sys/revoke` and `sys/renew` endpoints. This is fixed in OpenBao v2.5.4.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 18:42 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
Vendor Product Version CPE status
openbao openbao Affected: < 2.5.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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