CVE-2026-9694— Improper Neutralization of Substitution Characters in GitLab
Quick assessment
Affected
GitLab GitLab
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 15.9至18.10.8之前版本、18.11至18.11.5之前版本和19.0至19.0.2之前版本存在安全漏洞，该漏洞源于电子邮件模板处理中中和不当，可能导致未认证用户通过特制服务台电
Possible ATT&CK Techniques 2 AI
T1566.001 · Spearphishing Attachment T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-9694
Vulnerability Information
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Vulnerability Title
Improper Neutralization of Substitution Characters in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.9 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions, could have allowed an unauthenticated user to impersonate the GitLab Support Bot and inject arbitrary content via a specially crafted Service Desk email reply due to improper neutralization in email template processing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
替代符号转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE） 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 15.9至18.10.8之前版本、18.11至18.11.5之前版本和19.0至19.0.2之前版本存在安全漏洞，该漏洞源于电子邮件模板处理中中和不当，可能导致未认证用户通过特制服务台电
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-9694
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-9694 (1)
Same Patch Batch · GitLab · 2026-06-11 · 11 CVEs total
| CVE-2026-10087 | 8.7 HIGH | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi |
| CVE-2026-7250 | 7.5 HIGH | Allocation of Resources Without Limits or Throttling in GitLab |
| CVE-2026-8589 | 7.3 HIGH | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi |
| CVE-2026-1500 | 6.5 MEDIUM | Allocation of Resources Without Limits or Throttling in GitLab |
| CVE-2026-6269 | 5.4 MEDIUM | Incorrect Authorization in GitLab |
| CVE-2026-9204 | 5.3 MEDIUM | Server-Side Request Forgery (SSRF) in GitLab |
| CVE-2026-10733 | 4.3 MEDIUM | Improper Restriction of Rendered UI Layers or Frames in GitLab |
| CVE-2026-6277 | 4.3 MEDIUM | Incorrect Authorization in GitLab |
| CVE-2026-6976 | 3.7 LOW | Authorization Bypass Through User-Controlled Key in GitLab |
| CVE-2026-3553 | 3.1 LOW | Incorrect Authorization in GitLab |
IV. Related Vulnerabilities
V. Comments for CVE-2026-9694
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