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VulnerabilityPublished

CVE-2026-118762: monkeytypegame monkeytype · Untrusted Functionality Inclusion

Affects monkeytypegame monkeytypeSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical : upgrade to 26.43.0 as a priority.

Data as of 29 Oct 2026, 19:15 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.19.3
Patch
Available – fixed in 26.43.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade monkeytype and monkeytypegame/monkeytype to 26.43.0.

Affected software

ProductAffectedFixed in
monkeytypegamemonkeytypeAffected
  • <26.43.0
Fixed in
  • 26.43.0
GitHubmonkeytypegame/monkeytypepkg:github/monkeytypegame/monkeytypeOther threatsAffected
  • <26.43.0
Fixed in
  • 26.43.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade the Monkeytype repository to version 26.43.0 or later, where the CI workflow has been fixed to prevent execution of untrusted code with elevated permissions. Until upgraded, avoid merging pull requests that trigger the vulnerable workflow or remove the format label trigger. No additional mitigation is required as the fix is available.

Description

CVE-2026-118762 is a critical vulnerability in the Monkeytype repository's CI workflow prior to version 26.43.0. The GitHub Actions workflow runs with repository write permissions on pull_request_target events and executes code from forked pull requests with elevated privileges. This allows an external contributor to execute arbitrary code, access the GITHUB_TOKEN, and potentially push changes or modify pull requests and issues. The vulnerability affects only the repository's CI workflow, not the Monkeytype application or user data. The issue is fixed in version 26.43.0.

References

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