CVE-2026-115363

Low

Description

OpenBao 2.2.0 before 2.6.4 and 2.7.0 before 2.7.1 contains an information disclosure vulnerability that exposes the tls_acme_eab_mac_key value through the sys/config/state/sanitized endpoint. Callers of the sanitized configuration endpoint can retrieve the ACME External Account Binding MAC key used for TLS listener certificates, letting them bind to the operator's ACME account.

SeverityLow

CVSS3.3

Exploit probability—

ProductOpenbao

PublishedOct 22, 2026

First seenOct 22, 2026

Weakness typeCWE-212CWE-212

How to fix

Update

openbao openbao2.6.4, 2.7.1 or later

Vendor advisories

github.com/openbao/openbao/security/advisories/GHSA-3237-j65r-m5rp

Affected products

Product	Affected versions	Fixed in
openbao openbao	2.2.0 ≤ v < 2.6.4, 2.7.0 ≤ v < 2.7.1	2.6.4, 2.7.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.