CVE-2019-12995: Istio

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.

Affected products

• Istio Istio: before 1.2.2 (fixed in 1.2.2)

Published 2019-06-28. Last modified 2026-06-17.