Resolução de erro simples “The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key” que aparece quando você tenta atualizar pacotes nos sistemas Debian.

Err:10 https://packages.sury.org/php bullseye InRelease
  The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <[email protected]>
Fetched 14.1 kB in 1s (14.5 kB/s)
Reading package lists... Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://packages.sury.org/php bullseye InRelease: The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <[email protected]>
W: Failed to fetch https://packages.sury.org/php/dists/bullseye/InRelease  The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key <[email protected]>
W: Some index files failed to download. They have been ignored, or old ones used instead.

Este erro também impede a atualização de pacotes nos servidores Debian com o WordOps. (wo stack upgrade).

Relacionado: Como instalar e configurar o Lemp no Debian 12

The following signatures were invalid: EXPKEYSIG B188E2B695BD4743 DEB.SURY.ORG Automatic Signing Key

Esse erro aparece porque o Sury.org mudou a chave para a assinatura digital do Debian e, para remediar o problema que você precisa baixar a nova chave.

apt-key adv --fetch-keys https://packages.sury.org/php/apt.gpg

Depois de executar este pedido, você pode atualizar todos os pacotes Debian:

apt update && apt upgrade

Aqueles que usam o WordOps executarão a linha de comando:

wo stack upgrade

Tudo funcionará sem problemas na atualização de pacotes no Debian.