Vault vulnerable to LIST authorization bypass via trailing-slash strip (CVE-2026-12624) | HOL Guard CVE

Medium · CVSS 4.3CVE-2026-12624

Vault vulnerable to LIST authorization bypass via trailing-slash strip

Answer in brief

CVE-2026-12624 records a Medium severity (CVSS 4.3) vulnerability in Vault vulnerable to LIST authorization bypass via trailing-slash strip. The current sources do not mark it as known exploited. The current feed maps HashiCorp/Vault (generic), HashiCorp/Vault (generic), HashiCorp/Vault Enterprise (generic), HashiCorp/Vault Enterprise (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 10, 2026Updated Aug 28, 2026Source checked Sep 24, 2026First seen by HOL Aug 10, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.3
Exploitation: Not marked as known exploited
Affected software: 4 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps HashiCorp/Vault (generic), HashiCorp/Vault (generic), HashiCorp/Vault Enterprise (generic), HashiCorp/Vault Enterprise (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
HashiCorp/Vaultgeneric	>=2.0.0 <2.0.3	2.0.3
HashiCorp/Vaultgeneric	>=0 <2.0.3	2.0.3
HashiCorp/Vault Enterprisegeneric	>=2.0.0 <2.0.3	2.0.3
HashiCorp/Vault Enterprisegeneric	>=0 <2.0.3	2.0.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for HashiCorp/Vault, HashiCorp/Vault, HashiCorp/Vault Enterprise.
Review the reported fix. Update HashiCorp/Vault to 2.0.3; HashiCorp/Vault to 2.0.3; HashiCorp/Vault Enterprise to 2.0.3; HashiCorp/Vault Enterprise to 2.0.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 10, 2026

Sources and claim methodology

Source referencediscuss.hashicorp.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.