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CVE-2026-88765— Improper Neutralization of Special Elements used in a Command ('Command Injection') 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 已修复 GitLab EE 中的一个漏洞。该漏洞影响 12.3 至 19.1.8、19.2 中 19.2.6 之前的版本以及 19.3 中 19.3.2 之前的版本。在特定条件下，该漏洞可能允许经过身份验证的用户通过导入一个精心构造的 Git 项目归档文件，使高级搜索索引所使用的 Unicode 转换缓冲区发生溢出，从而实现远程代码执行。

CVSS 8.5 · High

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 12.3< 19.1.8 affected
19.2< 19.2.6 affected
19.3< 19.3.2 affected
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I. Basic Information for CVE-2026-88765

Vulnerability Information
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Vulnerability Title
Improper Neutralization of Special Elements used in a Command ('Command Injection') in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
GitLab has remediated an issue in GitLab EE affecting all versions from 12.3 to 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 under certain conditions could allow an authenticated user to achieve remote code execution by importing a specially crafted Git project export to overflow the Unicode conversion buffer used in Advanced Search indexing.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 12.3 ~ 19.1.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-88765

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III. Intelligence Information for CVE-2026-88765

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Other References for CVE-2026-88765 (1)

Same Patch Batch · GitLab · 2026-09-15 · 4 CVEs total

CVE-2026-13210 7.7 HIGH Incorrect Authorization in GitLab
CVE-2026-12910 5.4 MEDIUM Missing Authentication for Critical Function in GitLab
CVE-2026-82837 5.3 MEDIUM Insertion of Sensitive Information Into Sent Data in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-77

V. Comments for CVE-2026-88765

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