CVE-2026-86542
knowns before 0.30.0 Path Traversal via Import Name
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 |
| Vendor | knowns-dev |
| Product | knowns |
| Published | Sep 7, 2026 |
| Last Updated | Sep 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
knowns-dev / knowns
0 < 0.30.0
References
github.com: https://github.com/knowns-dev/knowns/security/advisories/GHSA-wh3c-v55g-qfg8 github.com: https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/imports.go#L519-L551 github.com: https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/imports.go#L376-L420 github.com: https://github.com/knowns-dev/knowns/commit/d3989829fb5095666d23d005b2f78a082832a396 github.com: https://github.com/knowns-dev/knowns/releases/tag/v0.30.0 vulncheck.com: https://www.vulncheck.com/advisories/knowns-before-0.30.0-path-traversal-via-import-name
Credits
🔍 Tong Hoang Gia (uziii2208) 🔍 Nguyen Huy Hoang (hoanggxyuuki)