Medium severity · published Aug 10, 2026
CVE-2026-12624
Vault vulnerable to LIST authorization bypass via trailing-slash strip
4.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VA
Vault · HashiCorp
before 2.0.3 · source: vendor
VE
Vault Enterprise · HashiCorp
before 2.0.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12624
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12624
discuss.hashicorp.com
https://discuss.hashicorp.com/t/hcsec-2026-26-vault-vulnerable-to-list-authorization-bypass-via-trailing-slash-strip/77632
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