Medium severity4.5NVD Advisory· Published May 2, 2025· Updated Jun 17, 2026
CVE-2025-4166
CVE-2025-4166
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/hashicorp/vaultGo | >= 0.3.0, < 1.19.3 | 1.19.3 |
Affected products
21- osv-coords16 versionspkg:apk/chainguard/splunk-otel-collectorpkg:apk/chainguard/splunk-otel-collector-compatpkg:apk/chainguard/splunk-otel-collector-docpkg:apk/chainguard/splunk-otel-collector-fipspkg:apk/chainguard/splunk-otel-collector-migratecheckpointpkg:apk/chainguard/splunk-otel-collector-migratecheckpoint-compatpkg:apk/wolfi/splunk-otel-collectorpkg:apk/wolfi/splunk-otel-collector-compatpkg:apk/wolfi/splunk-otel-collector-docpkg:apk/wolfi/splunk-otel-collector-migratecheckpointpkg:apk/wolfi/splunk-otel-collector-migratecheckpoint-compatpkg:bitnami/openbaopkg:bitnami/vaultpkg:golang/github.com/hashicorp/vaultpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/openbao&distro=openSUSE%20Tumbleweed
< 0.125.0-r1+ 15 more
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 0.125.0-r1
- (no CPE)range: < 2.2.2
- (no CPE)range: >= 0.3.0, < 1.19.3
- (no CPE)range: >= 0.3.0, < 1.19.3
- (no CPE)range: < 0.0.20250506T153719-1.1
- (no CPE)range: < 2.2.2-1.1
- Range: 0.10.0
Patches
Vulnerability mechanics
References
4- discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-pluginnvdVendor AdvisoryWEB
- github.com/advisories/GHSA-gcqf-f89c-68hvghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-4166ghsaADVISORY
- pkg.go.dev/vuln/GO-2025-3663ghsaWEB
News mentions
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