CVE-2026-40035 — Unfurl - Werkzeug Debugger Exposure via String Config Parsing
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…
Published: 2026-04-08 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7