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CVE-2026-53980— Charmbracelet Wish 2.0.5 Path Traversal via git Middleware

Quick assessment

Affected
charmbracelet wish
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.

Charmbracelet 的 wish 项目（2.0.5 版本之前）在 git 中间件（charm.land/wish/v2）中存在路径遍历漏洞。该漏洞允许已认证的 SSH 用户通过提供精心构造的仓库路径，绕过 git.Middleware() 中基于前向斜杠计数的缺陷防护机制，从而逃逸出配置的仓库目录。攻击者可利用单级路径 ，或在 Windows 系统上使用负载 ，完全绕过斜杠计数防护，进而通过 git-upload-pack、git-upload-archive 或 git-receive-pack 命令读取

CVSS 8.1 · High
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I. Basic Information for CVE-2026-53980

Vulnerability Information
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Vulnerability Title
Charmbracelet Wish 2.0.5 Path Traversal via git Middleware
Source: CVE Program / CVE List V5
Vulnerability Description
Charmbracelet wish before 2.0.5 contains a path traversal vulnerability in the git middleware (charm.land/wish/v2) that allows authenticated SSH users to escape the configured repository directory by supplying crafted repo paths that bypass a flawed forward-slash-count containment check in git.Middleware(). Attackers can use a single-depth path ../evil, or on Windows a payload ..\..\evil that defeats the slash-count guard entirely, to read or write arbitrary repositories outside the intended root via git-upload-pack, git-upload-archive, or git-receive-pack.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
charmbracelet wish 0 ~ 2.0.5 -

II. Public POCs for CVE-2026-53980

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III. Intelligence Information for CVE-2026-53980

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Other References for CVE-2026-53980 (3)

IV. Related Vulnerabilities

Same product: wish
Same vendor: charmbracelet
Same weakness: CWE-22