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CVE-2026-30836

10.0 · CRITICAL

Step CA is an online certificate authority for secure, automated certificate management for DevOps.

Published Mar 19, 2026CWE-287EPSS 0.32%

Overview

CVE-2026-30836 is a critical-severity vulnerability. It was published on March 19, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6 and below do not safeguard against unauthenticated certificate issuance through the SCEP UpdateReq. This issue has been fixed in version 0.30.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4efGitHubgithub.com/smallstep/certificates/releases/tag/v0.30.0-rc7GitHubgithub.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw

How CyberStrike helps

Frequently asked questions

What is CVE-2026-30836?

CVE-2026-30836 is a critical-severity vulnerability. It was published on March 19, 2026 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2026-30836?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-30836?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-30836?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-30836 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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