CVE-2024-58354
Severity CVSS v4.0:
HIGH
Type:
CWE-77
Command Injection
Publication date:
23/07/2026
Last modified:
30/07/2026
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.
Impact
Base Score 4.0
8.50
Severity 4.0
HIGH
Base Score 3.x
9.90
Severity 3.x
CRITICAL
References to Advisories, Solutions, and Tools
- https://github.com/calcom/cal.diy/commit/9aa60fae41a6b6b101c86bf430754b439f440871
- https://github.com/calcom/cal.diy/security/advisories/GHSA-p3f6-52gv-cj7m
- https://www.vulncheck.com/advisories/cal-com-repository-takeover-via-pull-request-target-workflow
- https://github.com/calcom/cal.diy/security/advisories/GHSA-p3f6-52gv-cj7m