CVE-2021-31923: Pingidentity Pingaccess

Medium severity, CVSS 5.3. EPSS: 0.7% chance of exploitation in the next 30 days.

Ping Identity PingAccess before 5.3.3 allows HTTP request smuggling via header manipulation.

Affected products

• Pingidentity Pingaccess: before 5.3.3 (fixed in 5.3.3)

Published 2021-09-24. Last modified 2026-06-17.