CVE-2025-4166

mediumpriority · track · 26EPSS 0.004 · 39 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.45% (39th) EPSS

CVSS 6.5 · medium

Is it mine?

39 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.14.5mediumAV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · security@hashicorp.comexploitability 0.9 · impact 3.6

v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-209USCWE-209USCWE-209US

affected products (39)

Products and version ranges known to be affected.

Hashicorp Vault <1.16.18 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.16.20 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.17.14 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.17.16 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.18.7 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.18.9 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.19.1 Community Editionall versionscert_bundDE
Hashicorp Vault <1.19.1 Enterpriseall versionscert_bundDE
Hashicorp Vault <1.19.3 Community Editionall versionscert_bundDE
Hashicorp Vault <1.19.3 Enterpriseall versionscert_bundDE
Hashicorp Vault< 1.16.18 Enterprisecert_bundDE
Hashicorp Vault< 1.16.20 Enterprisecert_bundDE
Hashicorp Vault< 1.17.14 Enterprisecert_bundDE
Hashicorp Vault< 1.17.16 Enterprisecert_bundDE
Hashicorp Vault< 1.18.7 Enterprisecert_bundDE
Hashicorp Vault< 1.18.9 Enterprisecert_bundDE
Hashicorp Vault< 1.19.1 Community Editioncert_bundDE
Hashicorp Vault< 1.19.1 Enterprisecert_bundDE
Hashicorp Vault< 1.19.3 Community Editioncert_bundDE
Hashicorp Vault< 1.19.3 Enterprisecert_bundDE

showing 20 of 39

advisories (5)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0933Hashicorp Vault: Mehrere SchwachstellenDeutsch2025-05-04csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Hashicorp Vault ausnutzen, um Sicherheitsvorkehrungen zu umgehen und um Informationen offenzulegen.
GHSA-gcqf-f89c-68hvHashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information2025-05-02ghsa · osvUS
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.
BIT-openbao-2025-4166Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin2026-07-27vendor · osvUS
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.
BIT-vault-2025-4166Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin2025-05-07vendor · osvUS
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.
GO-2025-3663Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault2025-05-06vendor · osvUS
Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund NVD CVE.org MITRE

published 2025-05-02modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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