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HIGHCVE-2026-6073CVSS 8.7

CVE-2026-6073: XSS in GitLab 18.7 - 18.11

平台

gitlab

组件

gitlab

修复版本

18.11.3

正在翻译为您的语言…

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.

影响与攻击场景翻译中…

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.

利用背景翻译中…

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.

威胁情报

漏洞利用状态

概念验证未知
CISA KEVNO
互联网暴露
报告1 份威胁报告

CISA SSVC

利用情况none
可自动化no
技术影响total

CVSS 向量

威胁情报· CVSS 3.1CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N8.7HIGHAttack VectorNetwork攻击者如何到达目标Attack ComplexityLow利用漏洞所需的条件Privileges RequiredLow攻击所需的认证级别User InteractionRequired是否需要受害者采取行动ScopeChanged超出受影响组件的影响范围ConfidentialityHigh敏感数据泄露风险IntegrityHigh数据未授权篡改风险AvailabilityNone服务中断风险nextguardhq.com · CVSS v3.1 基础分数
这些指标意味着什么?
Attack Vector
网络 — 可通过互联网远程利用,无需物理或本地访问。攻击面最大。
Attack Complexity
低 — 无需特殊条件,可以稳定地利用漏洞。
Privileges Required
低 — 任何有效用户账户均可。
User Interaction
需要 — 受害者必须打开文件、点击链接或访问特制页面。
Scope
已改变 — 攻击可以超出脆弱组件,影响其他系统。
Confidentiality
高 — 完全丧失机密性,攻击者可读取所有数据。
Integrity
高 — 攻击者可写入、修改或删除任何数据。
Availability
无 — 无可用性影响。

受影响的软件

组件gitlab
供应商GitLab
最低版本18.7.0
最高版本18.11.3
修复版本18.11.3

弱点分类 (CWE)

时间线

  1. 已保留
  2. 发布日期

缓解措施和替代方案翻译中…

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.

修复方法翻译中…

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.

常见问题翻译中…

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)

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