CVE-2025-12653 is a medium-severity vulnerability in GitLab CE/EE, affecting versions before 18.4.5, 18.5.3, and 18.6.1. It allows an unauthenticated user to join arbitrary organizations by manipulating request headers. The CVSS score is 6.5, indicating a network-based attack with low complexity, requiring no user interaction, and potentially leading to low confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in the KEV catalog. Community discussion and media coverage are minimal, suggesting low current attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 18.3.0, < 18.4.5CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | ||
>= 18.3.0, < 18.4.5CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | ||
>= 18.5.0, < 18.5.3CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | ||
>= 18.5.0, < 18.5.3CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | ||
18.6.0CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:18.6.0:*:*:*:community:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.