CVE-2026-12624Network attack vectorHinoki check available

Entry-name disclosure via trailing-slash path normalization

Published Aug 10, 2026 · Updated Aug 10, 2026

Incorrect authorization in HashiCorp Vault allows remote authenticated users to enumerate denied entry names through crafted LIST requests. The ACL policy engine strips a trailing slash before its prefix lookup, so a broader parent allow rule wins over the more specific wildcard deny rule. Reachability requires a token with that exact policy combination, and exposure is limited to entry names rather than secret values or added capabilities.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in HashiCorp Vault allows remote authenticated users to enumerate denied entry names through crafted LIST requests. The ACL policy engine strips a trailing slash before its prefix lookup, so a broader parent allow rule wins over the more specific wildcard deny rule. Reachability requires a token with that exact policy combination, and exposure is limited to entry names rather than secret values or added capabilities.

The record

CVE
CVE-2026-12624
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
HashiCorp
Product
Vault
Classifications
CWE-863, CAPEC-127
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HashiCorp · Vaultversion=0 <2.0.3
HashiCorp · Vault Enterpriseversion=0 <2.0.3 changes=[{"at":"1.21.8","status":"unaffected"},{"at":"1.20.13","status":"unaffected"},{"at":"1.19.19","status":"unaffected"}]

Published CVSS scores

4.3HashiCorpCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CAPEC-127Directory Indexing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo