CVE-2025-4166
What it is
Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-209
- Record status
- Analyzed
Affected
- Hashicorp Vault < 1.16.20
- Hashicorp Vault < 1.19.3
- Hashicorp Vault < 1.17.16
- Hashicorp Vault < 1.18.9
- Openbao < 2.2.2
Attack profile CVSS 3.1 · 4.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
