BIT-openbao-2026-55774

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-55774.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-openbao-2026-55774
Aliases
Published
2026-09-25T12:28:09Z
Modified
2026-09-25T14:25:35Z
Summary
OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808
Details

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an OpenBao user with access to sys/leases/revoke/:lease_id in one namespace could revoke a lease in another namespace when the foreign lease_id was known, bypassing namespace ACL isolation. The affected lease lookup routing in vault/expiration.go allowed FetchLeaseInfo and loadEntry to resolve cached or stored lease data outside the request namespace, allowing a tenant that intentionally disclosed a lease identifier to have the lease and its underlying credential revoked by another tenant. This issue is fixed in version 2.5.5.

Database specific 
{
    "cpes":  [
        "cpe:2.3:a:openbao:openbao:*:*:*:*:*:go:*:*"
    ],
    "severity":  "Low"
}
References

Affected packages

Bitnami / openbao

Package

Name
openbao
Purl
pkg:bitnami/openbao

Severity

  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.5

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/openbao/BIT-openbao-2026-55774.json"