CVE-2026-86542
Severity CVSS v4.0:
HIGH
Type:
CWE-22
Path Traversal
Publication date:
07/09/2026
Last modified:
07/09/2026
Description
knowns before 0.30.0 fails to validate import names in the import routes, allowing unauthenticated attackers to write files outside the imports directory. Attackers can supply traversal sequences in the name parameter to escape the imports directory and overwrite arbitrary files writable by the server process.
Impact
Base Score 4.0
8.80
Severity 4.0
HIGH
Base Score 3.x
9.10
Severity 3.x
CRITICAL
References to Advisories, Solutions, and Tools
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/imports.go#L376-L420
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/imports.go#L519-L551
- https://github.com/knowns-dev/knowns/commit/d3989829fb5095666d23d005b2f78a082832a396
- https://github.com/knowns-dev/knowns/releases/tag/v0.30.0
- https://github.com/knowns-dev/knowns/security/advisories/GHSA-wh3c-v55g-qfg8
- https://www.vulncheck.com/advisories/knowns-before-0.30.0-path-traversal-via-import-name