{"id":"CVE-2026-118762","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-118762","generatedAt":"2026-11-04T11:56:56.032Z","title":"Because actions/checkout persists the elevated GITHUB_TOKEN in Git configuration until after untrusted code executes, an external contributor whose pull request receives the format label can run arbitrary code, read or exfiltrate the token, and push…","description":"Monkeytype is a minimalistic and customizable typing test. Prior to 26.43.0, the .github/workflows/fix-formatting.yml workflow runs on pull_request_target with repository write permissions, checks out a fork pull request, installs dependencies from the fork's package.json, and invokes the fork-controlled oxfmt binary. Because actions/checkout persists the elevated GITHUB_TOKEN in Git configuration until after untrusted code executes, an external contributor whose pull request receives the format label can run arbitrary code, read or exfiltrate the token, and push repository content or modify pull requests and issues. The issue affects the repository CI workflow, not the Monkeytype application or user data. This issue is fixed in version 26.43.0.","published":"2026-10-29T17:18:07.000Z","lastModified":"2026-11-04T02:17:16.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.3,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"},"cwe":["CWE-829"],"affected":[],"epss":{"score":0.0032,"percentile":0.2504,"date":"2026-11-03","history":[{"date":"2026-10-30","score":0.0032,"percentile":0.24996}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-29T17:18:07.000Z","detail":{"score":"9.3","severity":"CRITICAL","publishedAt":"2026-10-29T17:18:07.070Z"},"summary":"New CVE, critical severity (CVSS 9.3)."}],"references":[{"url":"https://github.com/monkeytypegame/monkeytype/commit/592ce1becb9b6824badc14a803bcd9268cbea382","source":"security-advisories@github.com"},{"url":"https://github.com/monkeytypegame/monkeytype/releases/tag/v26.43.0","source":"security-advisories@github.com"},{"url":"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8","source":"security-advisories@github.com"},{"url":"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-118762","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}