CVE-2026-30836

Name: CVE-2026-30836
Creator: NVD / NIST
Published: 2026-03-19T21:17:09.783+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2026-30836 is a critical-severity vulnerability rated 10/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

EPSS Probability

0.30%

21.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Smallstep	Step-Ca	< 0.30.0	—
Smallstep	Step-Ca	0.30.0	Rc1

References

Timeline

Published: Mar 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-30836?

How severe is CVE-2026-30836?

CVE-2026-30836 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2026-30836?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-30836?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST