CVE-2026-41589: Wish has SCP Path Traversal that allows arbitrary file read/write

Severity: critical (CVSS 9.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-05-07 · updated 2026-10-26
Weakness: CWE-22

Description

Wish is an SSH server with defaults and a collection of middlewares. From version 2.0.0 to before version 2.0.1, the SCP middleware in charm.land/wish/v2 is vulnerable to path traversal attacks. A malicious SCP client can read arbitrary files from the server, write arbitrary files to the server, and create directories outside the configured root directory by sending crafted filenames containing ../ sequences over the SCP protocol. This issue has been patched in version 2.0.1.

Affected products

charmbracelet wish: 2.0.0

References

https://github.com/charmbracelet/wish/releases/tag/v2.0.1
https://github.com/charmbracelet/wish/security/advisories/GHSA-xjvp-7243-rg9h
https://github.com/charmbracelet/wish/security/advisories/GHSA-xjvp-7243-rg9h

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