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CVE-2026-24686— go-tuf Path Traversal in TAP 4 Multirepo Client Allows Arbitrary File Write via Malicious Repository Names

Quick assessment

Affected
theupdateframework go-tuf
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.

go-tuf是The Update Framework开源的一个用于保护软件更新系统的框架。 go-tuf 2.0.0至2.4.1之前版本存在路径遍历漏洞，该漏洞源于使用存储库名称字符串作为文件系统路径组件时存在路径遍历，可能导致在预期缓存目录外创建目录和写入文件。

CVSS 4.7 · Medium EPSS 0.24% · P13
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I. Basic Information for CVE-2026-24686

Vulnerability Information
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Vulnerability Title
go-tuf Path Traversal in TAP 4 Multirepo Client Allows Arbitrary File Write via Malicious Repository Names
Source: CVE Program / CVE List V5
Vulnerability Description
go-tuf is a Go implementation of The Update Framework (TUF). go-tuf's TAP 4 Multirepo Client uses the map file repository name string (`repoName`) as a filesystem path component when selecting the local metadata cache directory. Starting in version 2.0.0 and prior to version 2.4.1, if an application accepts a map file from an untrusted source, an attacker can supply a `repoName` containing traversal (e.g., `../escaped-repo`) and cause go-tuf to create directories and write the root metadata file outside the intended `LocalMetadataDir` cache base, within the running process's filesystem permissions. Version 2.4.1 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
go-tuf 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-tuf是The Update Framework开源的一个用于保护软件更新系统的框架。 go-tuf 2.0.0至2.4.1之前版本存在路径遍历漏洞，该漏洞源于使用存储库名称字符串作为文件系统路径组件时存在路径遍历，可能导致在预期缓存目录外创建目录和写入文件。
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

Vendor Product Affected Versions CPE Subscribe
theupdateframework go-tuf >= 2.0.0, < 2.4.1 -

II. Public POCs for CVE-2026-24686

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III. Intelligence Information for CVE-2026-24686

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Vendor Advisories for CVE-2026-24686 (1)

IV. Related Vulnerabilities

Same product: go-tuf
Same vendor: theupdateframework
Same weakness: CWE-22

V. Comments for CVE-2026-24686

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