Vulnerability · Published Aug 10, 2026 · Assigned by HashiCorp
CVE-2026-12624Vault vulnerable to LIST authorization bypass via trailing-slash strip
Medium 4.3
In plain English
A medium-severity incorrect authorization in Vault from HashiCorp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HashiCorp | Vault | 0 – before 2.0.3 |
| HashiCorp | Vault Enterprise | 0 – before 2.0.3 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N