CVE-2026-86538highobserved exploitationCWE-22

CVE-2026-86538: high-severity vulnerability in knowns-dev knowns

knowns before 0.30.0 Path Traversal via templateFile parameter

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43Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck.

ssvc Actcvss 8.7epss 1.0%
from disclosure to weapon
Published on NVDSep 7
VulnCheck+10d
knowns versions before 0.30.0 contain a path traversal vulnerability in the POST /api/templates/preview endpoint that allows unauthenticated attackers to read arbitrary files. Attackers can supply directory traversal sequences in the templateFile parameter to bypass path restrictions and read sensitive files like credentials and configuration through the JSON response.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
knowns-dev · knowns
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