CVE-2020-12872: Yaws

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

yaws_config.erl in Yaws through 2.0.2 and/or 2.0.7 loads obsolete TLS ciphers, as demonstrated by ones that allow Sweet32 attacks, if running on an Erlang/OTP virtual machine with a version less than 21.0.

Affected products

• Yaws Yaws: from 2.0.2, up to and including 2.0.6

Published 2020-05-15. Last modified 2026-06-17.