CVE-2026-110288
Cross-site request forgery vulnerability in GitHub Enterprise Server allowed deletion of stored ChatOps configuration through the Management Console
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Enterprise Server GitHub |
≥ 3.19.0; < 3.19.* (affected, semver); unaffected at 3.19.14 ≥ 3.20.0; < 3.20.* (affected, semver); unaffected at 3.20.10 ≥ 3.21.0; < 3.21.* (affected, semver); unaffected at 3.21.8 ≥ 3.22.0; < 3.22.* (affected, semver); unaffected at 3.22.3 Other versions: unknown |
CNA: GitHub_P |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 5.3 medium |
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 | CNA: GitHub_P |
| 4.0 / 5.3 medium |
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/E:X/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 | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://docs.github.com/en/[email protected]/admin/release-notes#3.19.14CNA: GitHub_P · release-notes
- https://docs.github.com/en/[email protected]/admin/release-notes#3.20.10CNA: GitHub_P · release-notes
- https://docs.github.com/en/[email protected]/admin/release-notes#3.21.8CNA: GitHub_P · release-notes
- https://docs.github.com/en/[email protected]/admin/release-notes#3.22.3CNA: GitHub_P · release-notes
- https://docs.github.com/en/[email protected]/admin/release-notes#3.19.14[email protected]
- https://docs.github.com/en/[email protected]/admin/release-notes#3.20.10[email protected]
- https://docs.github.com/en/[email protected]/admin/release-notes#3.21.8[email protected]
- https://docs.github.com/en/[email protected]/admin/release-notes#3.22.3[email protected]
For agents and automation
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