CVE-2026-118762

The record

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.

Affected packages

Related vulnerabilities

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• CVE-2026-15564 Wildfly's IIOP listener may permit deserialization of input streams before authentication… CWE-829
• CVE-2026-114488 A flaw was found in Wildfly. CWE-829
• CVE-2026-84725 when EAP runs with -secmgr, the openjdk-orb's JDKBridge honours attacker-supplied CDR… CWE-829
• CVE-2026-59172 Joker is a small Clojure interpreter, linter and formatter written in Go. CWE-829
• CVE-2026-59176 Functype is a family of TypeScript functional programming libraries. CWE-829
• CVE-2026-65119 NVIDIA TensorRT-LLM for any platform contains a vulnerability in KvCacheAwareRouter… CWE-829