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Description

An issue has been discovered in GitLab CE/EE affecting all versions from 8.15 before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that could have could have allowed an authenticated user to cause a Denial of Service (DoS) condition by submitting URLs that generate excessively large responses.

PUBLISHED Reserved 2025-04-14 | Published 2025-08-27 | Updated 2025-08-27 | Assigner GitLab




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

Default status
unaffected

8.15 before 18.1.5
affected

18.2 before 18.2.5
affected

18.3 before 18.3.1
affected

Credits

Thanks [nermalt](https://hackerone.com/nermalt) for reporting this vulnerability through our HackerOne bug bounty program finder

References

gitlab.com/gitlab-org/gitlab/-/issues/536034 (GitLab Issue #536034) issue-tracking permissions-required

hackerone.com/reports/3050155 (HackerOne Bug Bounty Report #3050155) technical-description exploit permissions-required

cve.org (CVE-2025-3601)

nvd.nist.gov (CVE-2025-3601)

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