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

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- GitHub / Enterprise Server: ≥ 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. Source: CNA: GitHub_P

## Severity and prioritization

- CVSS 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; source: CNA: GitHub_P

- CVSS 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; source: NVD: product-cna@github.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-352

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.14 (CNA: GitHub_P; release-notes)

- https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.10 (CNA: GitHub_P; release-notes)

- https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.8 (CNA: GitHub_P; release-notes)

- https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.3 (CNA: GitHub_P; release-notes)

- https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.14 (product-cna@github.com)

- https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.10 (product-cna@github.com)

- https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.8 (product-cna@github.com)

- https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.3 (product-cna@github.com)

## Provenance

- CNA: GitHub_P: https://www.cve.org/CVERecord?id=CVE-2026-110288; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-110288; retrieved 2026-11-04; source updated 2026-11-03

Revision: 7cca44271d966c5c273018cf41dc5469e0a5d12845508e99807c58bbbab9f8bf

Canonical: https://y2.dev/cve/CVE-2026-110288

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.