Dashboard / CVE-2026-7541

CVE-2026-7541

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 73/100
Published: 2026-05-07 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: Present
VC: None
VI: None
VA: High

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.

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
github enterprise_server < 3.16.18
github enterprise_server 3.17.0 – 3.17.15
github enterprise_server 3.18.0 – 3.18.9
github enterprise_server 3.19.0 – 3.19.6
github enterprise_server 3.20.0 – 3.20.2

References & Advisories (5)

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
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/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

EPSS — Exploitation Probability

0.39%
Raw Score 0.003880
Percentile 32.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00388
2026-10-28
0.00388

Intelligence Sources

nvd ref →

External Links