Description
Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HashiCorp | Vault | < 2.0.0 | 2.0.0 |
| HashiCorp | Vault Enterprise | < 2.0.0. | 2.0.0. |
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.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openbao | 2.5.3-1.1 | openSUSE-SU-2026:10594-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openbao | 2.5.4-r0 | — |
| Alpine v3.23 | openbao | 2.5.4-r0 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | splunk-otel-collector | 0.157.0-r0 | — |
| Wolfi rolling | splunk-otel-collector-compat | 0.160.0-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/hashicorp/vault | <= 1.21.4 | — | GHSA-88v5-9hxc-f85r |
| Go | github.com/hashicorp/vault | all versions | — | GO-2026-5247 |
Advisories 3
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- openSUSE-SU-2026:10594-1 openbao-2.5.3-1.1 on GA media SUSE / openSUSE Security Updates · Apr 22, 2026
- WID-SEC-2026-1164 Hashicorp Vault Community Edition und Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 16, 2026