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CVE-2026-75418

HIGH
7.5
CVSS Score
Published: August 27, 2026 at 12:00 AM UTC
Updated: September 1, 2026 at 09:11 PM UTC
1 product affected across 1 vendorLektor

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Lektor· Lektor
90%
v < 3.3.14

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://github.com/lektor/lektor
Source: cverecord
https://github.com/TKar0/TKar0-CvePoc/tree/main/2026-CVE-POC/CVE-2026-75418

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmitre
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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