Vault vulnerable to LIST authorization bypass via trailing-slash strip

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-12624
StatePUBLISHED
AssignerHashiCorp
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 17:17:29 UTC
Updated2026-08-11 16:17:28 UTC
DescriptionVault’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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.001970000 probability, percentile 0.096770000 (date 2026-08-12)

Problem Types: CWE-863 | CWE-863 CWE-863: Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA HashiCorp Vault affected 2.0.3 semver 64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux
CNA HashiCorp Vault Enterprise affected 2.0.3 semver 64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux

References

ReferenceSourceLinkTags
discuss.hashicorp.com/t/hcsec-2026-26-vault-vulnerable-to-list-authorization-bypass... [email protected] discuss.hashicorp.com
discuss.hashicorp.com/t/hcsec-2026-26-vault-vulnerable-to-list-authorization-bypass... MITRE discuss.hashicorp.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: This issue was reported to HashiCorp by Mike Cole of Redpath Security. (en)

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