CVE-2026-86542 (GCVE-0-2026-86542)
Vulnerability from cvelistv5 – Published: 2026-09-07 23:03 – Updated: 2026-09-24 14:21
VLAI
EPSS
VEX
Title
knowns before 0.30.0 Path Traversal via Import Name
Summary
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.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:43 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/knowns-dev/knowns/security/adv… | vendor-advisory |
| https://github.com/knowns-dev/knowns/blob/v0.29.1… | technical-description |
| https://github.com/knowns-dev/knowns/blob/v0.29.1… | technical-description |
| https://github.com/knowns-dev/knowns/commit/d3989… | patch |
| https://github.com/knowns-dev/knowns/releases/tag… | release-notes |
| https://www.vulncheck.com/advisories/knowns-befor… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| knowns-dev | knowns |
Affected:
0 , < 0.30.0
(semver)
Unaffected: 0.30.0 (semver) |
guessed |
Date Public
2026-08-16 00:00
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