CVE-2026-115366

2.0 lowEPSS 0.2%

OpenBao from 2.3.0 before 2.6.3 contains an improper authorization vulnerability that allows privileged child-namespace tokens to modify plugin registrations because /v1/sys/plugins/catalog/* is not restricted to the root namespace. Attackers can remove existing registrations, create invalid ones, or register installed plugins through a child namespace's sys/ mount, causing denial of service.

CVSS 4.0: 2.0CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 2.6CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
EPSS: 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)
CWE: CWE-863
Published: 2026-10-22
Modified: 2026-10-23
Record from: the NVD, synced 2026-10-23

References

https://github.com/openbao/openbao/security/advisories/GHSA-cg72-x35g-xfp8
https://www.vulncheck.com/advisories/openbao-2.3.0-before-2.6.3-missing-root-namespace-enforcement-in-plugin-catalog-apis

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