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CVE-2026-75418

High

Description

A path traversal vulnerability exists in the built-in preview/development web server of Lektor <3.3.14 on Windows. An attacker with network access to the server can send a crafted HTTP request containing path traversal sequences to read arbitrary files accessible to the process, disclosing sensitive information such as system files and deployment configuration files containing credentials.

SeverityHigh
CVSS7.5
Exploit probability—
ProductLektor
PublishedAug 28, 2026
First seenAug 28, 2026
Weakness typeCWE-22Path traversal

How to fix

Update
  • Lektor3.3.14 or later

Affected products

ProductAffected versionsFixed in
LektorNo range specified3.3.14

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