CVE-2026-54557
published 2026-06-26CVE-2026-54557: 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…
PriorityP425medium5.5CVSS 3.1
AVLACLPRNUIRSUCNIHAN
EPSS
0.18%
7.1th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| jdx | mise | < 2026.6.1 | 2026.6.1 |
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VulDB
jdx mise up to 2026.6.0 HTTP Backend PathBuf::join path traversal
vuldb·2026-06-26·CVSS 5.5
CVE-2026-54557 [MEDIUM] jdx mise up to 2026.6.0 HTTP Backend PathBuf::join path traversal
A vulnerability was found in jdx mise up to 2026.6.0 and classified as critical. This vulnerability affects the function PathBuf::join of the component HTTP Backend. The manipulation results in path traversal.
This vulnerability is reported as CVE-2026-54557. The attack requires a local approach. No exploit exists.
It is suggested to upgrade the affected component.
GHSA
mise HTTP backend uses raw version path for install symlink destination
ghsa·2026-06-23
CVE-2026-54557 [MEDIUM] CWE-22 mise HTTP backend uses raw version path for install symlink destination
mise HTTP backend uses raw version path for install symlink destination
## Summary
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`.
The reproducer below also models a CI/developer workflow
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-26
Published