Description
Step CA is an online certificate authority for secure, automated certificate management for DevOps. Prior to 0.29.0, there is an improper authorization check for SSH certificate revocation. This affects deployments configured with the SSHPOP provisioner. This vulnerability is fixed in 0.29.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| smallstep | certificates | < 0.29.0 | — |
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.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | govulncheck-vulndb | 0.0.20251209T172047-150000.1.127.1 | SUSE-SU-2025:4395-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20251209T172047-150000.1.127.1 | SUSE-SU-2025:4395-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | step-certificates | 0.29.0-r0 | — |
| Alpine v3.23 | step-certificates | 0.29.0-r0 | — |
| Alpine v3.22 | step-certificates | 0.29.0-r0 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | caddy +2 | 2.10.2-r6 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/smallstep/certificates | < 0.29.0 | 0.29.0 | GHSA-j7c9-79x7-8hpr |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2025:4395-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026