Path Traversal: \'../filedir\' in OpenBao - #VU152262
Published: September 25, 2026
Vulnerability identifier: #VU152262
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-24
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform unauthorized actions across namespaces.
The vulnerability exists due to path traversal in the ACL policy cache when resolving specially crafted policy names. A remote user can attach specially crafted policy names to tokens to perform unauthorized actions across namespaces.
The referenced policies must be present in the in-memory LRU policy cache when the token is created and when it is used.
Affected software
OpenBao
Remediation
Install security update from vendor's website.
OpenBao - addressed in versions 2.6.3, 2.7.0