Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-7541— Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via unauthenticated API endpoint

Quick assessment

Affected
GitHub Enterprise Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitHub Enterprise Server是美国GitHub开源的一个应用软件。提供一个将自己的GitHub实例设置为虚拟设备，从而提供可扩展，易于管理的平台。 GitHub Enterprise Server 3.21之前版本存在安全漏洞，该漏洞源于解析用户控制的JSON请求体时未设置大小或深度限制，可能导致未经身份验证的攻击者通过发送带有深度嵌套JSON有效载荷的特制请求，造成服务中断。以下版本受到影响：3.20.2之前版本、3.19.6之前版本、3.18.9之前版本、3.17.15之前版本和3

AI Predicted 7.5 Difficulty: Trivial EPSS 0.66% · P50

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 5

VendorProduct Version RangeStatus
GitHub Enterprise Server 3.16.0≤ 3.16.17 affected
3.17.0≤ 3.17.14 affected
3.18.0≤ 3.18.8 affected
3.19.0≤ 3.19.5 affected
3.20.0≤ 3.20.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-7541

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via unauthenticated API endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to cause service disruption by sending crafted requests with deeply nested JSON payloads to an unauthenticated API endpoint. The endpoint parsed user-controlled JSON request bodies without size or depth limits, causing excessive CPU and memory consumption. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.2, 3.19.6, 3.18.9, 3.17.15, and 3.16.18. This vulnerability was reported via the GitHub Bug Bounty program.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
GitHub Enterprise Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitHub Enterprise Server是美国GitHub开源的一个应用软件。提供一个将自己的GitHub实例设置为虚拟设备，从而提供可扩展，易于管理的平台。 GitHub Enterprise Server 3.21之前版本存在安全漏洞，该漏洞源于解析用户控制的JSON请求体时未设置大小或深度限制，可能导致未经身份验证的攻击者通过发送带有深度嵌套JSON有效载荷的特制请求，造成服务中断。以下版本受到影响：3.20.2之前版本、3.19.6之前版本、3.18.9之前版本、3.17.15之前版本和3
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitHub Enterprise Server 3.16.0 ~ 3.16.17 -

II. Public POCs for CVE-2026-7541

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-7541

请登录查看更多情报信息。

Same Patch Batch · GitHub · 2026-05-07 · 4 CVEs total

CVE-2026-6736 Authentication bypass vulnerability in GitHub Enterprise Server allowed creation of local
CVE-2026-8106 Reflected HTML injection vulnerability in GitHub Enterprise Server Management Console logi
CVE-2026-8034 Server-side request forgery vulnerability in GitHub Enterprise Server notebook viewer via

IV. Related Vulnerabilities

Same product: Enterprise Server
Same vendor: GitHub
Same weakness: CWE-770

V. Comments for CVE-2026-7541

No comments yet

Leave a comment