cve.bz

CVE-2026-45808

7.1 highEPSS 0.4%

High (7.1). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/openbao/openbao 2.5.4.

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

CVSS 4.0

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
EPSS
0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWE
CWE-863
Published
Modified
Record from
the NVD, synced

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-v8v8-cm84-m686Gogithub.com/openbao/openbao<2.5.42.5.4
GO-2026-5657Gogithub.com/openbao/openbaoall versionsno fix published

References

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