CVE-2026-115359

OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Role-Based Rate Limit Quota Bypass via Request Parsing

State: Published
Severity: 6.3 Medium
Published: Oct 22, 2026
Updated: Oct 29, 2026
Reserved: Oct 22, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L	VulnCheck

Weaknesses

CWE-799 Improper Control of Interaction Frequency

Affected Products

Product	Versions
openbaoopenbao	before 2.6.4Affected 2.6.4Not affected 2.7.0 to before 2.7.1Affected 2.7.1Not affected

References

GitHub Security Advisory (GHSA-5v22-543h-wg96)vendor-advisory
VulnCheck Advisory: OpenBao before 2.6.4 and 2.7.0 before 2.7.1 Role-Based Rate Limit Quota Bypass via Request Parsingthird-party-advisory

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