Description
An issue was discovered in GitLab CE/EE affecting all versions starting from 13.9 before 17.4.6, 17.5 before 17.5.4, and 17.6 before 17.6.2, that allows an attacker to cause uncontrolled CPU consumption, potentially leading to a Denial of Service (DoS) condition while parsing templates to generate changelogs.
Problem types
CWE-770: Allocation of Resources Without Limits or Throttling
Product status
13.9 (semver) before 17.4.6
17.5 (semver) before 17.5.4
17.6 (semver) before 17.6.2
Credits
Thanks [l33thaxor](https://hackerone.com/l33thaxor) for reporting this vulnerability through our HackerOne bug bounty program
References
gitlab.com/gitlab-org/gitlab/-/issues/496631 (GitLab Issue #496631)
hackerone.com/reports/2735311 (HackerOne Bug Bounty Report #2735311)