Vulnerability details

CVE-2026-1092

GitLab GitLab

Improper Validation of Specified Quantity in Input in GitLab

CVSS 3.1

7.5High

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.10 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an unauthenticated user to cause denial of service due to improper input validation of JSON payloads.

CVSS scores

Score	Version	Source	Vector
7.5High	3.1	CVEProject cvelistV5 (CNA) (GitLab)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Affected products

Vendor	Product	Versions	Source
GitLab	GitLab	12.10 ≤ v < 18.8.9	CVEProject cvelistV5 (CNA)
GitLab	GitLab	18.10 ≤ v < 18.10.3	CVEProject cvelistV5 (CNA)
GitLab	GitLab	18.9 ≤ v < 18.9.5	CVEProject cvelistV5 (CNA)

References and advisories

https://hackerone.com/reports/3487030 technical-descriptionexploitpermissions-required
https://gitlab.com/gitlab-org/gitlab/-/work_items/586479
https://about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released/

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Details

Published: 2026-04-09
Last updated: 2026-04-09
State: Published
Assigner (CNA): GitLab

Exploit prediction (EPSS)

0.56%

Probability of exploitation in 30 days

46.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Partial

Weaknesses (CWE)

CWE-1284
Improper Validation of Specified Quantity in Input