CVE-2026-40035

CRITICAL SEVERITY

CVSS Score & Metrics

Base Score

9.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N                                    

Vulnerability Description

Unfurl through 2025.08 contains an improper input validation vulnerability in config parsing that enables Flask debug mode by default. The debug configuration value is read as a string and passed directly to app.run(), causing any non-empty string to evaluate truthy, allowing attackers to access the Werkzeug debugger and disclose sensitive information or achieve remote code execution.

Vulnerability Details

Published Date

April 08, 2026

Last Modified

April 13, 2026

CWE ID

CWE-489

Source

NVD

Vendor

obsidianforensics

Product

unfurl

External References

https://github.com/obsidianforensics/unfurl/security/advisories/GHSA-vg9h-jx4v-cwx2
https://www.vulncheck.com/advisories/dfir-unfurl-werkzeug-debugger-exposure-via-string-config-parsing

CVE-2026-40035

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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