CVE-2021-24035: WhatsApp

Critical severity, CVSS 9.1. EPSS: 1.1% chance of exploitation in the next 30 days.

A lack of filename validation when unzipping archives prior to WhatsApp for Android v2.21.8.13 and WhatsApp Business for Android v2.21.8.13 could have allowed path traversal attacks that overwrite WhatsApp files.

Affected products

• WhatsApp WhatsApp: before 2.21.8.13 (fixed in 2.21.8.13)
• WhatsApp WhatsApp Business: before 2.21.8.13 (fixed in 2.21.8.13)

Published 2021-06-11. Last modified 2026-06-17.