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CVE-2026-110264— Integer Overflow or Wraparound 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.

在 GitLab CE/EE 中发现了一个安全漏洞,影响范围包括:7.0 至 18.11.13 之前的所有版本、19.0 至 19.0.10 之前的版本、19.1 至 19.1.9 之前的版本、19.2 至 19.2.9 之前的版本、19.3 至 19.3.6 之前的版本、19.4 至 19.4.3 之前的版本,以及 19.5 至 19.5.1 之前的版本。在特定条件下,该漏洞可能允许未经身份验证的用户通过编译一个特制的正则表达式触发整数溢出,从而在 GitLab 服务器上执行任意代码。

CVSS 10.0 · Critical

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-110264

Vulnerability Information

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Vulnerability Title
Integer Overflow or Wraparound in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before 18.11.13, 19.0 before 19.0.10, 19.1 before 19.1.9, 19.2 before 19.2.9, 19.3 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server due to integer overflow when compiling a specially crafted regular expression.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab 7.0 ~ 18.11.13 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-110264

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-110264

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Patches & Fixes for CVE-2026-110264 (1)

Other References for CVE-2026-110264 (1)

IV. Related Vulnerabilities

V. Comments for CVE-2026-110264

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