CVE-2026-1102 is a denial-of-service vulnerability affecting GitLab CE/EE versions 12.3 through 18.6.3, 18.7.0 through 18.7.1, and 18.8.0 through 18.8.1. An unauthenticated attacker can trigger this by sending repeated malformed SSH authentication requests. Rated 7.5 HIGH on CVSS, this network-based vulnerability requires low attack complexity and can lead to a complete denial of service without user interaction. While there is no evidence of active exploitation or public exploit code, the vulnerability has garnered significant community discussion and media attention, indicating awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 12.3, < 18.6.4CPE match | cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:* | ||
>= 18.7, < 18.7.2CPE match | cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:* | ||
>= 18.8, < 18.8.2CPE match | cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:* | ||
>= 12.3.0, < 18.6.4CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | ||
>= 12.3.0, < 18.6.4CPE matchmatch criteria | cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.