2.7

CVE-2026-40264: openbao

CVSS: 2.7v3.1LowAnalyzed
AliasesCGA-8jp2-q62x-r43wCGA-92w6-p9gx-jm6wCGA-hh6v-fvf3-w26p
Published 21-04-2026Last modified 21-04-2026
Open JSON

Vulnerability summary

CVE-2026-40264 is a low (CVSS 2.7) vulnerability in openbao. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 29% of scored vulnerabilities.

Overall risk
11/100
0100
Low · default modelHow is this calculated?
CVSS score
2.7/10
010
Low · v3.1 (NVD)
EPSS score
0.36%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 3
OPENSUSE-SU-2026:10594-1OPENSUSE-SU-2026:21483-1CGA-C2G4-7FVQ-W3VM

Timeline

  1. 21-04-2026
    PublishedVulnerability first disclosed.
  2. 21-04-2026
    Last modifiedVulnerability information updated.

Description

OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.36%

Chance of exploitation in the next 30 days

Percentile

29%

Versus all other CVEs

30-day change

+0.06 pp

From 0.30% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard2 products
  • openbao< 2.5.3-r0
  • openbao-compat< 2.5.3-r0
Wolfi2 products
  • openbao< 2.5.3-r0
  • openbao-compat< 2.5.3-r0
Github.com/openbao1 product
  • openbao< 0.0.0-20260420162526-f58111d2ca54
Openbao1 product

4 vendors · 6 products

References

7 links