CVE-2026-30836

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 23.3% of scored records. A rank, not a probability.

NVD base score

10.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Critical. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-19 20:37Z7 MO AGO

Last updated

2026-03-25 14:16Z7 MO AGO

Reserved

2026-03-05

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-295Improper Certificate ValidationBase
• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

dab0fce31431c55d0f3f1f47c86373a838d78ce64b9746d9c4700d3c1d083562

• github.comhttps://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gwx_refsource_CONFIRM
• github.comhttps://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4efx_refsource_MISC
• github.comhttps://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7x_refsource_MISC