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CVE

CVE-2026-30836

Step CA: Unauthenticated Certificate Issuance via SCEP UpdateReq (MessageType=18)
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CVE

CVE-2026-30836

Step CA: Unauthenticated Certificate Issuance via SCEP UpdateReq (MessageType=18)

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30836.json, https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw, https://nvd.nist.gov/vuln/detail/CVE-2026-30836, https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef

Severity

10

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
10
EPSS Probability
0.00009%
EPSS Percentile
0.0087%
Introduced Version
0
Fix Available
e6da031d5125cfd99fe9a26f74bb41e4dacca4ef,d34619c55e5cd46ce08d8bdb8c846df2c4d8aca0,0.30.1-r0,2.11.2-r7,2.11.2-r3,1.12.1-r2,0.30.2-r0,0.9.11-r10

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