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CVE Vulnerability Details :
CVE-2025-4166
PUBLISHED
More InfoOfficial Page
Assigner-HashiCorp
Assigner Org ID-67fedba0-ff2e-4543-ba5b-aa93e87718cc
View Known Exploited Vulnerability (KEV) details
Published At-02 May, 2025 | 14:57
Updated At-08 May, 2025 | 13:01
Rejected At-
▼CVE Numbering Authority (CNA)
Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin

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.

Affected Products
Vendor
HashiCorp, Inc.HashiCorp
Product
Vault
Repo
https://github.com/hashicorp/vault
Platforms
  • 64 bit
  • 32 bit
  • x86
  • ARM
  • MacOS
  • Windows
  • Linux
Default Status
unaffected
Versions
Affected
  • From 0.3.0 before 1.19.2 (semver)
Vendor
HashiCorp, Inc.HashiCorp
Product
Vault Enterprise
Repo
https://github.com/hashicorp/vault
Platforms
  • 64 bit
  • 32 bit
  • x86
  • ARM
  • MacOS
  • Windows
  • Linux
Default Status
unaffected
Versions
Affected
  • From 0.10.0 before 1.19.2 (semver)
    • -> unaffectedfrom1.18.9
    • -> unaffectedfrom1.17.16
    • -> unaffectedfrom1.16.20
Problem Types
TypeCWE IDDescription
CWECWE-209CWE-209: Generation of Error Message Containing Sensitive Information
Type: CWE
CWE ID: CWE-209
Description: CWE-209: Generation of Error Message Containing Sensitive Information
Metrics
VersionBase scoreBase severityVector
3.14.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 4.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-215CAPEC-215: Fuzzing for application mapping
CAPEC ID: CAPEC-215
Description: CAPEC-215: Fuzzing for application mapping
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin
N/A
Hyperlink: https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found