VULNERABILITY INTELLIGENCE

CVE-2026-41589

CVSS score9.6 CRITICAL

EPSS probability0.39%

CISA KEVNot currently listed

Published2026-05-07

Last modified2026-10-26

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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.

Weakness classification

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Primary references

security-advisories@github.com — Release Notes
security-advisories@github.com — Exploit, Mitigation, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Mitigation, Vendor Advisory