CVE-2026-12624 — Vault vulnerable to LIST authorization bypass via trailing-slash strip

Description (CNA)

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 (CNA)

Vendor / product	Versions
HashiCorp / Vault	affected 0 before 2.0.3
HashiCorp / Vault Enterprise	affected 0 before 2.0.3

CWE

CWE-863

References

https://discuss.hashicorp.com/t/hcsec-2026-26-vault-vulnerable-to-list-authorization-bypass-via-trailing-slash-strip/77632

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.