Advisories for Pypi/Certifi package

2026

certifi bundles emSign root CAs with compromised intermediate CA keys

Certifi versions before 2026.10.18 include the emSign ECC Root CA - G3 root certificate in their bundled CA store. Eight eMudhra intermediate CA certificates that chain to this root have compromised private keys and the CA has revoked them. An attacker with one of the compromised keys can issue valid-looking certificates for any hostname. If the attacker is also on-path, they can intercept or modify TLS traffic from clients that …

2024

Certifi removes GLOBALTRUST root certificate

Certifi 2024.07.04 removes root certificates from "GLOBALTRUST" from the root store. These are in the process of being removed from Mozilla's trust store. GLOBALTRUST's root certificates are being removed pursuant to an investigation which identified "long-running and unresolved compliance issues". Conclusions of Mozilla's investigation can be found here.

2023

Removal of e-Tugra root certificate

Certifi 2023.07.22 removes root certificates from "e-Tugra" from the root store. These are in the process of being removed from Mozilla's trust store. e-Tugra's root certificates are being removed pursuant to an investigation prompted by reporting of security issues in their systems. Conclusions of Mozilla's investigation can be found here.

2022

Certifi removing TrustCor root certificate

Certifi 2022.12.07 removes root certificates from "TrustCor" from the root store. These are in the process of being removed from Mozilla's trust store. TrustCor's root certificates are being removed pursuant to an investigation prompted by media reporting that TrustCor's ownership also operated a business that produced spyware. Conclusions of Mozilla's investigation can be found here.