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CVE-2026-54557— mise HTTP backend uses raw version path for install symlink destination

Quick assessment

Affected
jdx mise
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.

jdx mise是jdx个人开发者开源的一个多语言版本管理器。 jdx mise 2026.6.1之前版本存在路径遍历漏洞，该漏洞源于HTTP后端构建安装符号链接目标时使用原始解析的版本字符串，可能导致在Unix系统上创建安装树之外的符号链接，使攻击者能够将可执行符号链接放置在任意绝对路径前缀下。

CVSS 5.5 · Medium EPSS 0.17% · P6

Affected Version Matrix 1

VendorProduct Version RangeStatus
jdx mise < 2026.6.1 affected
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I. Basic Information for CVE-2026-54557

Vulnerability Information
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Vulnerability Title
mise HTTP backend uses raw version path for install symlink destination
Source: CVE Program / CVE List V5
Vulnerability Description
mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.6.1, the mise HTTP backend builds its install symlink destination from the raw resolved version string for non-latest versions. Normal tool install paths use the sanitized version pathname, but the HTTP backend's symlink path uses the raw value. On Unix-like systems, if that version is an absolute path, PathBuf::join discards the intended mise installs root. A repository-controlled .tool-versions file can therefore make mise install create a symlink outside the mise install tree. With bin_path, the same issue can place an executable symlink under an attacker-selected absolute prefix, such as a developer-tool prefix that is later added to PATH. This vulnerability is fixed in 2026.6.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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
jdx mise 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jdx mise是jdx个人开发者开源的一个多语言版本管理器。 jdx mise 2026.6.1之前版本存在路径遍历漏洞，该漏洞源于HTTP后端构建安装符号链接目标时使用原始解析的版本字符串，可能导致在Unix系统上创建安装树之外的符号链接，使攻击者能够将可执行符号链接放置在任意绝对路径前缀下。
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
jdx mise < 2026.6.1 -

II. Public POCs for CVE-2026-54557

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III. Intelligence Information for CVE-2026-54557

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Vendor Advisories for CVE-2026-54557 (1)

Same Patch Batch · jdx · 2026-06-26 · 4 CVEs total

CVE-2026-33646 9.6 CRITICAL mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)
CVE-2026-55441 8.6 HIGH mise: Arbitrary command execution via task-include files in an untrusted, config-less repo
CVE-2026-55448 6.3 MEDIUM mise: Local credential_command executes untrusted config

IV. Related Vulnerabilities

Same product: mise
Same vendor: jdx
Same weakness: CWE-22

V. Comments for CVE-2026-54557

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