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Vulnerabilities

CVE-2025-11578 Detail

Description

A privilege escalation vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Enterprise admin to gain root SSH access to the appliance by exploiting a symlink escape in pre-receive hook environments. By crafting a malicious repository and environment, an attacker could replace system binaries during hook cleanup and execute a payload that adds their own SSH key to the root user’s authorized keys—thereby granting themselves root SSH access to the server. To exploit this vulnerability, the attacker needed to have enterprise admin privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19, and was fixed in versions 3.14.20, 3.15.15, 3.16.11, 3.17.8, 3.18.2. This vulnerability was reported via the GitHub Bug Bounty program.

Metrics

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CVSS 4.0 Severity and Vector Strings:

👁 NIST CVSS score

NIST: NVD

NVD assessment not yet provided.

👁 Nist CVSS score does not match with CNA score

CNA: GitHub, Inc. (Products Only)

CVSS-B 7.5 HIGH

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

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://docs.github.com/en/[email protected]/admin/release-notes#3.14.20	GitHub, Inc. (Products Only)	Release Notes Vendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.15.15	GitHub, Inc. (Products Only)	Release Notes Vendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.16.11	GitHub, Inc. (Products Only)	Release Notes Vendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.17.8	GitHub, Inc. (Products Only)	Release Notes Vendor Advisory
https://docs.github.com/en/[email protected]/admin/release-notes#3.18.2	GitHub, Inc. (Products Only)	Release Notes Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-59	Improper Link Resolution Before File Access ('Link Following')	GitHub, Inc. (Products Only)

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Change History

5 change records found show changes

CVE Modified by GitHub, Inc. (Products Only) 12/02/2025 4:15:51 PM

Action	Type	Old Value	New Value
Changed	Description	A privilege escalation vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Enterprise admin to gain root SSH access to the appliance by exploiting a symlink escape in pre-receive hook environments. By crafting a malicious repository and environment, an attacker could replace system binaries during hook cleanup and execute a payload that adds their own SSH key to the root user’s authorized keys—thereby granting themselves root SSH access to the server. To exploit this vulnerability, the attacker needed to have enterprise admin privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19, and was fixed in versions 3.14.19, 3.15.14, 3.16.10, 3.17.7 and 3.18.1. This vulnerability was reported via the GitHub Bug Bounty program.	A privilege escalation vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Enterprise admin to gain root SSH access to the appliance by exploiting a symlink escape in pre-receive hook environments. By crafting a malicious repository and environment, an attacker could replace system binaries during hook cleanup and execute a payload that adds their own SSH key to the root user’s authorized keys—thereby granting themselves root SSH access to the server. To exploit this vulnerability, the attacker needed to have enterprise admin privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19, and was fixed in versions 3.14.20, 3.15.15, 3.16.11, 3.17.8, 3.18.2. This vulnerability was reported via the GitHub Bug Bounty program.
Added	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.14.20
Added	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.15.15
Added	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.16.11
Added	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.17.8
Added	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.18.2
Removed	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.14.19
Removed	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.15.14
Removed	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.16.10
Removed	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.17.7
Removed	Reference	https://docs.github.com/en/[email protected]/admin/release-notes#3.18.1

Quick Info

CVE Dictionary Entry:
CVE-2025-11578
NVD Published Date:
11/10/2025
NVD Last Modified:
06/17/2026
Source:
GitHub, Inc. (Products Only)

URL: https://nvd.nist.gov/vuln/detail/CVE-2025-11578

⇱ NVD - CVE-2025-11578