CVE-2026-1662 (GCVE-0-2026-1662)

Vulnerability from cvelistv5 – Published: 2026-02-25 20:04 – Updated: 2026-02-26 15:10
VLAI
Title
Allocation of Resources Without Limits or Throttling in GitLab
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
URL Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/588206 issue-trackingpermissions-required
https://hackerone.com/reports/3519694 technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/02/25/patc…
Impacted products
Vendor Product Version
GitLab GitLab Affected: 14.4 , < 18.7.5 (semver)
Affected: 18.8 , < 18.8.5 (semver)
Affected: 18.9 , < 18.9.1 (semver)
    cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Thanks [a92847865](https://hackerone.com/a92847865) for reporting this vulnerability through our HackerOne bug bounty program
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.