ReDoS flaw in RefMatcher when matching branch names using wildcards in GitLab EE/CE affecting all versions from 11.3 prior to 17.0.6, 17.1 prior to 17.1.4, and 17.2 prior to 17.2.2 allows denial of service via Regex backtracking.
Solution:
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
Link | Tags |
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https://gitlab.com/gitlab-org/gitlab/-/issues/451293 | broken link issue tracking permissions required |
https://hackerone.com/reports/2416332 | exploit permissions required technical description |