Description
Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as [+trusted certificate+|https://developer.hashicorp.com/vault/api-docs/auth/cert#certificate]. In this configuration, an attacker may be able to craft a malicious certificate that could be used to impersonate another user. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HashiCorp | Vault | < 1.20.1 | 1.20.1 |
| HashiCorp | Vault Enterprise | < 1.20.1 | 1.20.1 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | govulncheck-vulndb | 0.0.20250814T182633-150000.1.98.1 | SUSE-SU-2025:02912-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20250811T192933-1.1 | openSUSE-SU-2025:15434-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20250814T182633-150000.1.98.1 | SUSE-SU-2025:02912-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | splunk-otel-collector | 0.138.0-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/hashicorp/vault | < 1.20.1 | 1.20.1 | GHSA-6c5r-4wfc-3mcx |
Advisories 3
- openSUSE-SU-2025:15434-1 govulncheck-vulndb-0.0.20250811T192933-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:02912-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026
- WID-SEC-2025-1702 Hashicorp Vault Community und Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 3, 2025