CVE-2026-12635: Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab
Vendor fix available · Affected: GitLab · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 16% of scored CVEs
Not scored yet. The CVE record carries no CVSS score.
DescriptionCVE.org
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an authenticated user with maintainer-role permissions to make requests to internal network resources through mirror synchronization due to improper URL validation.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- GitLab · GitLabfrom 8.3 before 18.11.6; from 19.0 before 19.0.3; from 19.1 before 19.1.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
CoverageNo articles yet
No CyberSIXT article names CVE-2026-12635 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.