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 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.
Metrics
Affected Vendors & Products
References
History
Thu, 23 Jul 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Calcom
Calcom cal.diy |
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| Vendors & Products |
Calcom
Calcom cal.diy |
Thu, 23 Jul 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | 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 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. | |
| Title | cal.com Repository Takeover via pull_request_target Workflow | |
| Weaknesses | CWE-77 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-07-23T21:16:43.545Z
Reserved: 2026-06-08T15:20:35.497Z
Link: CVE-2024-58354
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OpenCVE Enrichment
Updated: 2026-07-23T23:30:17Z