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Home / Vulnerability Intelligence / CVE-2026-30836

CVE-2026-30836 - Vulnerability Analysis

CriticalCVSS: 10.0

Last Updated: March 19, 2026

Step CA - Authentication Bypass

Published: March 19, 2026Updated: March 19, 2026Remote Exploitable

Overview

Step CA <= 0.30.0-rc6 contains an authentication bypass caused by insufficient validation in SCEP UpdateReq, letting unauthenticated attackers issue certificates, exploit requires no authentication.

Severity & Score

Severity: Critical
CVSS Score: 10.0
EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Unauthenticated attackers can issue certificates, potentially compromising system security and trust.

Mitigation

Update to version 0.30.0 or later.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Mar 19, 2026

šŸ”“ CVE-2026-30836 - Critical (10) 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 i... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-30836/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 19, 2026

šŸ”“ CVE-2026-30836 - Critical (10) 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 i... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-30836/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-30836
Severity
Critical
CVSS Score
10.0
Type
broken_authentication
Status
new
EPSS
0.0%
Social Posts
2

CWE

  • CWE-287

CVSS Metrics

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

EPSS Score

0.0%Probability of exploitation in the next 30 days