CVE-2026-18730

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.31% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 23.1% of scored records. A rank, not a probability.

NVD base score

8.2 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Received. NVD last modified this record on 2026-09-02.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-09-01 21:54Z1 DAY AGO

Last updated

2026-09-02 13:19Z15 HR AGO

Reserved

2026-08-03

Assigning CNA

GitHub_P

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.2

Document digest

33d53b43228a730d4e1c80a1697a1cb4b718b457c56b99683879f4d8630b4c13

• docs.github.comhttps://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.19release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.13release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.10release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.6release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.4release-notes