CVE-2023-49568— Maliciously crafted Git server replies can cause DoS on go-git clients
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I. Basic Information for CVE-2023-49568
Vulnerability Information
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Vulnerability Title
Maliciously crafted Git server replies can cause DoS on go-git clients
Source: NVD (National Vulnerability Database)
Vulnerability Description
A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git clients. Applications using only the in-memory filesystem supported by go-git are not affected by this vulnerability. This is a go-git implementation issue and does not affect the upstream git cli.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
go-git 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-git是go-git开源的一个用纯 Go 编写的高度可扩展的 git 实现库。 go-git v5.11之前版本存在输入验证错误漏洞，该漏洞源于存在拒绝服务(DoS)漏洞，允许攻击者通过特制响应执行拒绝服务攻击，从而触发资源耗尽。
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-2023-49568
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IV. Related Vulnerabilities
Same product: go-git
- CVE-2026-41506
go-git Credential leak via cross-host redirect in smart HTTP - CVE-2026-33762
go-git: Missing validation decoding Index v4 files leads to - CVE-2026-34165
go-git: Maliciously crafted idx file can cause asymmetric me - CVE-2026-25934
go-git improperly verifies data integrity values for .idx an - CVE-2025-21614
go-git clients vulnerable to DoS via maliciously crafted Git
Same vendor: go-git
- CVE-2026-41506
go-git Credential leak via cross-host redirect in smart HTTP - CVE-2026-33762
go-git: Missing validation decoding Index v4 files leads to - CVE-2026-34165
go-git: Maliciously crafted idx file can cause asymmetric me - CVE-2026-25934
go-git improperly verifies data integrity values for .idx an - CVE-2025-21614
go-git clients vulnerable to DoS via maliciously crafted Git
Same weakness: CWE-20
V. Comments for CVE-2023-49568
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