Cette page n'a pas encore été traduite dans votre langue. Affichage du contenu en anglais pendant que nous y travaillons.
💡 Keep dependencies up to date — most exploits target known, patchable vulnerabilities.
CVE-2026-6073: XSS in GitLab 18.7 - 18.11
Plateforme
gitlab
Composant
gitlab
Corrigé dans
18.11.3
CVE-2026-6073 describes a Cross-Site Scripting (XSS) vulnerability discovered in GitLab EE. This flaw allows an authenticated user to inject and execute arbitrary JavaScript code within the browsers of other GitLab users. The vulnerability impacts versions 18.7.0 through 18.11.3, and a patch is available in version 18.11.3.
Impact et Scénarios d'Attaquetraduction en cours…
Successful exploitation of CVE-2026-6073 could lead to a wide range of malicious activities. An attacker could steal session cookies, allowing them to impersonate other users and gain unauthorized access to sensitive data. They could also inject malicious scripts to deface GitLab pages, redirect users to phishing sites, or even execute arbitrary commands on the server if the browser has sufficient privileges. The impact is particularly severe given GitLab's widespread use in software development and DevOps workflows, where sensitive code and project data are often stored.
Contexte d'Exploitationtraduction en cours…
CVE-2026-6073 was published on May 14, 2026. As of this date, there is no public evidence of active exploitation in the wild. The vulnerability is not currently listed on KEV or EPSS, suggesting a low to medium probability of exploitation. Public proof-of-concept (POC) code may emerge, increasing the risk. Refer to the official GitLab advisory for further details.
Renseignement sur les Menaces
Statut de l'Exploit
Vecteur CVSS
Que signifient ces métriques?
- Attack Vector
- Réseau — exploitable à distance via internet. Aucun accès physique ou local requis.
- Attack Complexity
- Faible — aucune condition spéciale requise. Exploitable de manière fiable.
- Privileges Required
- Faible — tout compte utilisateur valide est suffisant.
- User Interaction
- Requise — la victime doit ouvrir un fichier, cliquer sur un lien ou visiter une page.
- Scope
- Modifié — l'attaque peut pivoter au-delà du composant vulnérable.
- Confidentiality
- Élevé — perte totale de confidentialité. L'attaquant peut lire toutes les données.
- Integrity
- Élevé — l'attaquant peut écrire, modifier ou supprimer toutes les données.
- Availability
- Aucun — aucun impact sur la disponibilité.
Logiciel Affecté
Classification de Faiblesse (CWE)
Chronologie
- Réservé
- Publiée
Mitigation et Contournementstraduction en cours…
The primary mitigation for CVE-2026-6073 is to upgrade GitLab EE to version 18.11.3 or later. If an immediate upgrade is not possible, consider implementing stricter input validation and output encoding measures to sanitize user-supplied data. Web Application Firewalls (WAFs) configured with rules to detect and block XSS payloads can provide an additional layer of defense. Regularly review and update GitLab's security configuration to ensure best practices are followed. After upgrading, confirm the fix by attempting to inject a simple JavaScript payload through a user input field and verifying that it is properly sanitized.
Comment corrigertraduction en cours…
Actualice GitLab a la versión 18.9.7 o superior, 18.10.6 o superior, o 18.11.3 o superior para mitigar la vulnerabilidad de Cross-Site Scripting (XSS). Esta actualización corrige la falta de sanitización adecuada de la entrada del usuario, previniendo la ejecución de código JavaScript malicioso en el navegador de otros usuarios. Consulte las notas de la versión para obtener instrucciones detalladas de actualización.
Questions fréquentestraduction en cours…
What is CVE-2026-6073 — XSS in GitLab?
CVE-2026-6073 is a Cross-Site Scripting (XSS) vulnerability in GitLab EE that allows authenticated users to execute JavaScript in other users' browsers. It affects versions 18.7.0–18.11.3.
Am I affected by CVE-2026-6073 in GitLab?
You are affected if you are running GitLab EE versions 18.7.0 through 18.11.3. Check your GitLab version immediately and upgrade if necessary.
How do I fix CVE-2026-6073 in GitLab?
Upgrade GitLab EE to version 18.11.3 or later. If immediate upgrade isn't possible, implement stricter input validation and output encoding.
Is CVE-2026-6073 being actively exploited?
As of May 14, 2026, there is no public evidence of active exploitation in the wild, but the risk remains until patched.
Where can I find the official GitLab advisory for CVE-2026-6073?
Refer to the official GitLab security advisory for CVE-2026-6073: [https://gitlab.com/security/advisories/CVE-2026-6073](https://gitlab.com/security/advisories/CVE-2026-6073)
Ton projet est-il affecté ?
Téléverse ton fichier de dépendances et découvre instantanément si cette CVE et d'autres te touchent.
Essayez maintenant — sans compte
scanZone.subtitle
Glissez-déposez votre fichier de dépendances
composer.lock, package-lock.json, requirements.txt, Gemfile.lock, pubspec.lock, Dockerfile...