CVE-2026-110288

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 61/100
Published: 2026-11-03 Modified: 2026-11-06 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Passive
AT: None
VC: None
VI: Low
VA: Low

Description

A cross-site request forgery vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to delete stored Slack and Microsoft Teams ChatOps configuration and provider credentials by inducing an authenticated Management Console operator's browser to send a cross-site GET request to the integration removal endpoint without a CSRF token. Exploitation required configured ChatOps integrations and an operator visiting attacker-controlled content while signed in to the Management Console; deletion could disrupt ChatOps notifications and commands when configuration was applied or services reloaded. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.23 and was fixed in versions 3.19.14, 3.20.10, 3.21.8, and 3.22.3. This vulnerability was reported via the GitHub Bug Bounty program.

Affected Software (8)

VendorProductVersion
GitHub Enterprise Server 3.19.0 < 3.19.*
GitHub Enterprise Server 3.20.0 < 3.20.*
GitHub Enterprise Server 3.21.0 < 3.21.*
GitHub Enterprise Server 3.22.0 < 3.22.*
GitHub Enterprise Server 3.19.0 < 3.19.*
GitHub Enterprise Server 3.20.0 < 3.20.*
GitHub Enterprise Server 3.21.0 < 3.21.*
GitHub Enterprise Server 3.22.0 < 3.22.*

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

5.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.19%
Raw Score 0.001870
Percentile 8.4%
Date 2026-11-06

EPSS Trend

2026-11-06
0.00187
2026-11-05
0.00187
2026-11-04
0.00187

Intelligence Sources

mitre ref →
nvd ref →