Vulnerability · Published Aug 2, 2023 · Assigned by GitLab
CVE-2023-3900Improper Validation of Specified Type of Input in GitLab
Medium 4.3
In plain English
A medium-severity security flaw in GitLab from GitLab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.9%top 39.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. An invalid 'start_sha' value on merge requests page may lead to Denial of Service as Changes tab would not load.
Affected products (as reported)
Weakness: CWE-1287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References
- GitLab Issue #418770 issue-tracking
- HackerOne Bug Bounty Report #2058514 technical-description, exploit, permissions-required