CVE-2026-118762 (GCVE-0-2026-118762)
Vulnerability from cvelistv5
Published
2026-10-29 16:50
Modified
2026-11-04 01:32
Severity ?
CWE
  • CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Summary
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.
Impacted products
Vendor Product Version
monkeytypegame monkeytype Version: < 26.43.0
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-118762",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-04T01:31:45.686726Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-04T01:32:08.297Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "monkeytype",
          "vendor": "monkeytypegame",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 26.43.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-829",
              "description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-29T16:50:44.341Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8"
        },
        {
          "name": "https://github.com/monkeytypegame/monkeytype/commit/592ce1becb9b6824badc14a803bcd9268cbea382",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/monkeytypegame/monkeytype/commit/592ce1becb9b6824badc14a803bcd9268cbea382"
        },
        {
          "name": "https://github.com/monkeytypegame/monkeytype/releases/tag/v26.43.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/monkeytypegame/monkeytype/releases/tag/v26.43.0"
        }
      ],
      "source": {
        "advisory": "GHSA-47v3-j88w-92f8",
        "discovery": "UNKNOWN"
      },
      "title": "Monkeytype: fork PR can execute code with elevated GITHUB_TOKEN"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-118762",
    "datePublished": "2026-10-29T16:50:44.341Z",
    "dateReserved": "2026-10-28T19:20:05.017Z",
    "dateUpdated": "2026-11-04T01:32:08.297Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-118762\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-11-04T01:31:45.686726Z\"}}}], \"references\": [{\"url\": \"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-11-04T01:32:03.348Z\"}}], \"cna\": {\"title\": \"Monkeytype: fork PR can execute code with elevated GITHUB_TOKEN\", \"source\": {\"advisory\": \"GHSA-47v3-j88w-92f8\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"monkeytypegame\", \"product\": \"monkeytype\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 26.43.0\"}]}], \"references\": [{\"url\": \"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8\", \"name\": \"https://github.com/monkeytypegame/monkeytype/security/advisories/GHSA-47v3-j88w-92f8\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/monkeytypegame/monkeytype/commit/592ce1becb9b6824badc14a803bcd9268cbea382\", \"name\": \"https://github.com/monkeytypegame/monkeytype/commit/592ce1becb9b6824badc14a803bcd9268cbea382\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/monkeytypegame/monkeytype/releases/tag/v26.43.0\", \"name\": \"https://github.com/monkeytypegame/monkeytype/releases/tag/v26.43.0\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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\u0027s 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-829\", \"description\": \"CWE-829: Inclusion of Functionality from Untrusted Control Sphere\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-29T16:50:44.341Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-118762\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-11-04T01:32:08.297Z\", \"dateReserved\": \"2026-10-28T19:20:05.017Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-10-29T16:50:44.341Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…