CVE-2026-1662 | THREATINT

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.4 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthenticated user to cause Denial of Service by sending specially crafted requests to the Jira events endpoint.

PUBLISHED Reserved 2026-01-29 | Published 2026-02-25 | Updated 2026-02-26 | Assigner GitLab

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/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

14.4 (semver) before 18.7.5

affected

18.8 (semver) before 18.8.5

affected

18.9 (semver) before 18.9.1

affected

Credits

Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program finder

References

gitlab.com/gitlab-org/gitlab/-/issues/588206 (GitLab Issue #588206) issue-tracking permissions-required

hackerone.com/reports/3519694 (HackerOne Bug Bounty Report #3519694) technical-description exploit permissions-required

about.gitlab.com/...25/patch-release-gitlab-18-9-1-released/

cve.org (CVE-2026-1662)

nvd.nist.gov (CVE-2026-1662)

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