CVE-2026-1659 json
Allocation of Resources Without Limits or Throttling in GitLab
published 5mo ago modified 2mo ago also BIT-gitlab-2026-1659 , EUVD-2026-30222
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.0 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by sending specially crafted requests due to insufficient input validation.
Patch / fix
- bitnami gitlab 18.9.7, 18.10.6, 18.11.3
- GitLab GitLab 18.9.7, 18.10.6, 18.11.3
Is CVE-2026-1659 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/3519824 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=9.0.0, <18.9.7 >=18.10.0, <18.10.6 >=18.11.0, <18.11.3 |
18.9.7 18.10.6 18.11.3 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
- Technology feeds
References
-
hackerone.com
/reports/3519824
technical-description, exploit, permissions-required, web
-
gitlab.com
/gitlab-org/gitlab/-/work_items/588201
broken-link, web
-
about.gitlab.com
/releases/2026/05/13/patch-release-gitlab-18-11-3-released/
release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-1659
web
Sources
- CVE List CVE-2026-1659
- NVD CVE-2026-1659
- OSV BIT-gitlab-2026-1659
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.