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I. Basic Information for CVE-2025-12983
Vulnerability Information

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Vulnerability Title
Memory Allocation with Excessive Size Value in GitLab
Source: NVD (National Vulnerability Database)
Vulnerability Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.9 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that could have allowed an authenticated attacker to cause a denial of service condition by submitting specially crafted markdown content with nested formatting patterns.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的内存分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
GitLab 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个开源的端到端软件开发平台,具有内置的版本控制、问题跟踪、代码审查、CI/CD(持续集成和持续交付)等功能。 GitLab CE和EE 18.3.6之前的16.9版本至18.3版本、18.4.4之前的18.4版本和18.5.2之前的18.5版本存在安全漏洞,该漏洞源于提交特制markdown内容可能导致拒绝服务。
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
VendorProductAffected VersionsCPESubscribe
GitLabGitLab 16.9 ~ 18.3.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
II. Public POCs for CVE-2025-12983
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III. Intelligence Information for CVE-2025-12983
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IV. Related Vulnerabilities
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