CVE-2026-9312

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 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

6.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 93.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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

Modified. NVD last modified this record on 2026-07-23.

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

2026-05-27 00:02Z3 MO AGO

Last updated

2026-06-30 20:53Z2 MO AGO

Reserved

2026-05-22

Assigning CNA

GitHub_P

Record state

PUBLISHED

Severity

Critical (CVSS 9.2)

CNA CVSS vector

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

Weaknesses

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

Data version

5.2

Document digest

62842f46b67503af4a3d17f43de03f5bb848389eacc9b82fddb2e1663748b838

• docs.github.comhttps://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.17release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.11release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.8release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.4release-notes
• docs.github.comhttps://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.2release-notes