Security Bulletin:Improper Chain of Trust in Erlang OTP's pubkey_cert Module Allows Certificate Forgery

Summary Improper Following of a Certificate's Chain of Trust vulnerability in Erlang OTP publickey pubkeycert module allows a non-CA certificate to be accepted as an intermediate issuer, enabling certificate chain forgery. In lib/publickey/src/pubkeycert.erl, pubkeycert:validateextensions/7...

AZL-89172 CVE-2026-42789 affecting package erlang for versions less than 26.2.5.21-1

Improper Following of a Certificate's Chain of Trust vulnerability in Erlang OTP publickey pubkeycert module allows a non-CA certificate to be accepted as an intermediate issuer, enabling certificate chain forgery. In lib/publickey/src/pubkeycert.erl, pubkeycert:validateextensions/7 contains two...