CVE-2026-110288 Cross-site request forgery vulnerability in GitHub Enterprise Server allowed deletion of stored ChatOps configuration through the Management Console

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.

Exploitable remotely over the network, without an account and if a user takes an action; the impact on data or service is limited.

Attack vector

Network

Attack complexity

Low

Attack requirements

None

Privileges required

None

Interaction

Passive

Confidentiality

None

Integrity

Low

Availability

Low

Confidentiality of other systems

None

Integrity of other systems

None

Availability of other systems

None

Affected products and versions