{"id":"CVE-2024-58354","title":"cal.com (calcom repository, later renamed cal.diy) is affected by a repository takeover vulnerability in its GitHub Actions workflows","summary":"cal.com (calcom repository, later renamed cal.diy) is affected by a repository takeover vulnerability in its GitHub Actions workflows. The workflow pr.yml uses the pull_request_target trigger with the repository's default write permissio…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H","cwe":["CWE-77"],"published":"2026-07-23","updated":"2026-10-02","sourceUpdated":"2026-10-02T00:10:00.180","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-58354","references":[{"url":"https://github.com/calcom/cal.diy/commit/9aa60fae41a6b6b101c86bf430754b439f440871","label":"disclosure@vulncheck.com"},{"url":"https://github.com/calcom/cal.diy/security/advisories/GHSA-p3f6-52gv-cj7m","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/cal-com-repository-takeover-via-pull-request-target-workflow","label":"disclosure@vulncheck.com"},{"url":"https://github.com/calcom/cal.diy/security/advisories/GHSA-p3f6-52gv-cj7m","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00559,"epssPercentile":0.44505,"ingestedAt":"2026-10-02T01:05:54.733Z","slug":"CVE-2024-58354","body":"## Overview\n\ncal.com (calcom repository, later renamed cal.diy) is affected by a repository takeover vulnerability in its GitHub Actions workflows. The workflow pr.yml uses the pull_request_target trigger with the repository's default write permissions and passes them down to check-types.yml. check-types.yml then performs a 'dangerous' checkout of the attacker-submitted pull request code (via the dangerous-git-checkout action) and subsequently executes it (through yarn install and package.json scripts). An attacker can open a pull request whose code runs arbitrary commands with the repository's write-scoped GITHUB_TOKEN, allowing them to push commits, merge or mutate pull requests, add or delete comments, and delete or force-push branches, thereby compromising the repository. The main branch is affected; no patched version is available.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}