CVE-2025-4166

Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin

CVSS 3.1 4.5 MEDIUMEUVD CVSS 3.1 4.5 CVSS 3.1 · [email protected] · Secondary 4.5 MEDIUMCVSS 3.1 · [email protected] · Primary 6.5 MEDIUMCVSS_V3 Publisher rating MODERATEFixed by github.com/hashicorp/vault 1.19.3osv · severity unknownFixed by github.com/hashicorp/vault 1.19.3KEV status unknown

Original advisory

cve-program · CVE-2025-4166

Published

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.

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euvd · EUVD-2025-13240

Published

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nvd · CVE-2025-4166

Published

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osv · GHSA-gcqf-f89c-68hv

Published

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osv · GO-2025-3663

Published

Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault

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Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

Which CVEs have scores here?

This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

cve-program · CVE-2025-4166

Published

Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin

Source published: 2 May 2025 14:57:58 UTC
Source modified: 8 May 2025 13:01:48 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 4.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

euvd · EUVD-2025-13240

Published

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 RE…

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: May 2, 2025, 2:57:58 PM

dateUpdated: May 8, 2025, 1:01:48 PM

3 related source bulletins · separate from aliases

openSUSE-SU-2025:15186-1: openbao-2.2.2-1.1 on GA media

CVE-2025-4166

openSUSE-SU-2025:15059-1: govulncheck-vulndb-0.0.20250506T153719-1.1 on GA media

CVE-2019-11243 · CVE-2023-32198 · CVE-2024-22031 · CVE-2025-23390 · CVE-2025-32777 · CVE-2025-3879 · CVE-2025-4166 · CVE-2025-4210 · CVE-2025-46327 · CVE-2025-46342 · CVE-2025-46569 · CVE-2025-46599

WID-SEC-W-2025-0933: Hashicorp Vault: Mehrere Schwachstellen

CVE-2025-3879 · CVE-2025-4166

Source published: May 2, 2025, 2:57:58 PM (timezone not stated)
Source modified: May 8, 2025, 1:01:48 PM (timezone not stated)
Saved here: 15 Nov 2026 04:31:17 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 3.1 · 4.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

nvd · CVE-2025-4166

Published

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 RE…

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-209

Original publisher date fields

published: 2025-05-02T15:15:50.313

lastModified: 2026-06-17T09:32:41.227

3 source CPE criteria · context only

cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*
cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 2 May 2025 15:15:50 UTC
Source modified: 17 Jun 2026 09:32:41 UTC
Saved here: 25 Oct 2026 02:24:54 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · [email protected] · Secondary · 4.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

CVSS 3.1 · [email protected] · Primary · 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

osv · GHSA-gcqf-f89c-68hv

Published

Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information

Source published: 2 May 2025 15:31:49 UTC
Source modified: 10 Sep 2026 03:50:57 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

Publisher rating · MODERATE

osv · GO-2025-3663

Published

Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault

Source published: 6 May 2025 15:37:19 UTC
Source modified: 27 Jul 2026 09:11:29 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.