🛡️ CVE-2026-45808 — openbao

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-863 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL in github.com/openbao/openbao

OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL in github.com/openbao/openbao.

NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.

(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)

The additional affected modules and versions are: github.com/openbao/openbao before v2.5.4.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2026-45808 is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

CVE-2026-45808 is recorded against 2 packages.

  • github.com/openbao/openbao
  • unknown

Timeline and source

Published on 28 May 2026 and last revised on 25 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector 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
CWE CWE-863
Public Exploit ✅ No
Source NVD
Published 2026-05-28
Updated 2026-08-12
Modified 2026-06-25

Affected Packages

Software From version Fixed in
github.com/openbao/openbao — —
unknown — —

Similar Threats

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