CVE-2026-115361: OpenBao before 2.6.3 ACL Bypass via Dropped Templated Policy Denial
Received
Published 22-10-2026Last modified 22-10-2026
Vulnerability summary
CVE-2026-115361 is a medium (CVSS 4.1) Incorrect Authorization vulnerability in openbao.
CVSS score
4.1/10
010
Medium · 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 before 2.6.3 contains an ACL bypass vulnerability that silently drops explicit deny rules based on forbidden identity metadata templates within wildcard grants. Attackers whose identity metadata contains wildcard or path segments can access paths that should be denied within the broader wildcard-granted scope.
CVSS metrics
4 scores · 2 sources · 2 versionsLow 2.1Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST2.1LowCVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/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
Medium 4.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:LSourcesAll 2 agree
- NVDNIST4.1MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/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< 2.6.3
1 vendor · 1 product