CVE-2026-45808

HIGHPre-NVD 0.0

0.0

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Impact

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.

Patch

This will be addressed in v2.5.4.

CVSS v3: —
EG Score: 0.0(none)
EPSS: —
KEV: Not listed

Published

May 28, 2026

Last Modified

May 28, 2026

Vendor Advisories for CVE-2026-45808(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-v8v8-cm84-m686
GitHub Security AdvisoriesHigh
OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

Data Freshness Timeline

(refreshed 1× in last 7d / 1× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-28 18:06 UTCEG score recompute

Frequently asked(3)

What is CVE-2026-45808?

CVE-2026-45808 is a high vulnerability published on May 28, 2026. OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL Impact 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…

When was CVE-2026-45808 disclosed?

CVE-2026-45808 was first published in the National Vulnerability Database on May 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

How do I remediate CVE-2026-45808?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45808, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45808

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