3.1

CVE-2026-12635

Reliance on Reverse DNS Resolution for a Security-Critical Action in GitLab

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gitlab ≫ GitLab Version >= 8.3.0 < 18.11.6
Gitlab ≫ GitLab Version >= 19.0.0 < 19.0.3
Gitlab ≫ GitLab Version19.1.0
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.057
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 3.1 1.6 1.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
cve@gitlab.com 0 1.6 0
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N
CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action

The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname.

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/
Vendor Advisory
Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/594321
Broken Link