CVE-2026-39473: Pär Thernström Simple History

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Insertion of Sensitive Information Into Sent Data vulnerability in Pär Thernström Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through <= 5.24.0.

Affected products

• Pär Thernström Simple History: up to and including 5.24.0

Published 2026-04-08. Last modified 2026-07-24.