Inadequate Encryption Strength Affecting erlang package, versions <1:21.2.6+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.39% (31st percentile)

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  • Snyk IDSNYK-ECHOLATEST-ERLANG-18353391
  • published28 Jul 2026
  • disclosed15 May 2020

Introduced: 15 May 2020

CVE-2020-12872  (opens in a new tab)
CWE-326  (opens in a new tab)

How to fix?

Upgrade Echo:latest erlang to version 1:21.2.6+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream erlang package and not the erlang package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1