Beschreibung
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.
- Veröffentlicht
- 2026-07-23 22:16:51
- Betroffene Versionen
- unknown
- Typ
- Webanwendung
- Zuletzt geändert
- 2026-07-30 16:41:25
- Vektor
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H