CVE-2026-115366: OpenBao 2.3.0 before 2.6.3 Missing Root Namespace Enforcement in Plugin Catalog APIs
Received
Published 22-10-2026Last modified 22-10-2026
Vulnerability summary
CVE-2026-115366 is a low (CVSS 2.6) Incorrect Authorization vulnerability in openbao.
CVSS score
2.6/10
010
Low · v3.1 (CVE.org)EPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 22-10-2026PublishedVulnerability first disclosed.
Description
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 metrics
4 scores · 2 sources · 2 versionsLow 2.0Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST2.0LowCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Low 2.6Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:LSourcesAll 2 agree
- NVDNIST2.6LowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Openbao1 product
- openbao≥ 2.3.0, < 2.6.3
1 vendor · 1 product
References
2 links- www.vulncheck.com/advisories/…Third Party Advisory