Vulnerability in Openbao
CVE-2026-115359
OpenBao before 2.6.4 and 2.7.x before 2.7.1 contains a flaw in its rate limit quota subsystem where role resolution fails for requests with form-encoded bodies or forwarded certificates, so quota rules scoped to backend-specific roles are not enforced. Valid callers can repeatedly issue tokens without consuming the configured role-based rate limit budget.
Published .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/openbao/openbao/security/advisories/GHSA-5v22-543h-wg96 (vendor-advisory)
- www.vulncheck.com/advisories/openbao-before-2.6.4-and-2.7.0-before-2.7.1-role-b… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115359?
- CVE-2026-115359 is a low-severity vulnerability in Openbao, classified under CWE-799. CVSS score: 3.7/10. Published 2026-10-22.
- How severe is CVE-2026-115359?
- Low severity. CVSS v3 base score is 3.7 out of 10.