What is CVE-2026-3854?

CVE-2026-3854 is a high-severity vulnerability in Github Enterprise Server, classified under Command Injection. CVSS score: 8.8/10. Published 2026-03-10.

How severe is CVE-2026-3854?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2026-3854 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Github Enterprise Server

CVE-2026-3854

An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.003 (57.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Github Enterprise Server — versions 3.14.0, 3.15.0, 3.16.0
Github Enterprise_server

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-3854?: CVE-2026-3854 is a high-severity vulnerability in Github Enterprise Server, classified under Command Injection. CVSS score: 8.8/10. Published 2026-03-10.
How severe is CVE-2026-3854?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2026-3854 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.