CVE-2026-12624
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
Vault's ACL policy engine did not consistently enforce a wildcard (glob) deny rule against LIST requests made with a trailing slash on the denied path. A token with a broader allow rule and a narrower wildcard deny rule may enumerate entry names beneath a path it was intended to be denied access to.
Risk Assessment
Disclosure of resource names in Vault that should be hidden may aid an attacker in further exploration and privilege escalation.
Recommendation
Update Vault to Community Edition 2.0.3 or Enterprise 2.0.3, 1.21.8, 1.20.13, or 1.19.19.
Original NVD description (English source)
Vault’s ACL policy engine did not consistently enforce a wildcard (glob) deny rule against LIST requests made with a trailing slash on the denied path. This may allow a token holding a broader allow rule alongside a narrower wildcard deny rule to enumerate the names of entries beneath a path it was intended to be denied access to. This vulnerability (CVE-2026-12624) is fixed in Vault Community Edition 2.0.3 and Vault Enterprise 2.0.3, 1.21.8, 1.20.13, and 1.19.19.