Vault Community Edition and Vault Enterprise did not apply explicit ACL policy deny rules to letter case variants of user and group names in auth methods that treat these names as case-insensitive. This may allow an authenticated user with delegated permissions to modify a protected user or group, potentially leading to privilege escalation. This vulnerability (CVE-2026-128100) is fixed in Vault Community Edition 2.2.2 and Vault Enterprise 2.2.2, 1.21.14, and 1.19.25.
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Solution
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References
History
Fri, 13 Nov 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Hashicorp
Hashicorp vault Hashicorp vault Enterprise |
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| Vendors & Products |
Hashicorp
Hashicorp vault Hashicorp vault Enterprise |
Fri, 13 Nov 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Vault Community Edition and Vault Enterprise did not apply explicit ACL policy deny rules to letter case variants of user and group names in auth methods that treat these names as case-insensitive. This may allow an authenticated user with delegated permissions to modify a protected user or group, potentially leading to privilege escalation. This vulnerability (CVE-2026-128100) is fixed in Vault Community Edition 2.2.2 and Vault Enterprise 2.2.2, 1.21.14, and 1.19.25. | |
| Title | Vault vulnerable to ACL deny bypass via case-variant auth method user and group names | |
| Weaknesses | CWE-178 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: HashiCorp
Published:
Updated: 2026-11-13T21:10:55.961Z
Reserved: 2026-11-12T22:16:53.115Z
Link: CVE-2026-128100
No data.
Status : Received
Published: 2026-11-13T20:18:56.070
Modified: 2026-11-13T21:17:43.890
Link: CVE-2026-128100
No data.
OpenCVE Enrichment
Updated: 2026-11-13T21:30:21Z
Weaknesses