Vulnerability · Published Mar 29, 2026 · Assigned by GitLab
CVE-2026-2370Improper Handling of Parameters in GitLab
High 8.1
In plain English
A high-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 60.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.3 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 affecting Jira Connect installations that could have allowed an authenticated user with minimal workspace permissions to obtain installation credentials and impersonate the GitLab app due to improper authorization checks.
Affected products (as reported)
Weakness: CWE-233 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- HackerOne Bug Bounty Report #3522829 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/589635
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
- https://access.redhat.com/security/cve/CVE-2026-2370 vdb-entry, x_refsource_REDHAT
- RHBZ#2452920 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2370.json x_sadp-csaf-vex