Skip to content
~/pwn.watch

Get notified

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Only used for pwn.watch incident emails. Protected by Cloudflare Turnstile.

criticallivepartial fix

day · Oct 19, 2026

eMudhra intermediate CA private keys compromised

› eMudhra / emSign Global TLS intermediates; any client shipping Mozilla-style CA stores

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Updates on Oct 19, 2026

  1. eMudhra revoked the eight intermediates; browsers continued emergency distrust.

## summary

Eight eMudhra Global TLS intermediate CA private keys were found to be cryptographically weak / recoverable (researcher report Oct 18). Mozilla, Chrome, Apple and Microsoft blocked the intermediates; eMudhra revoked them Oct 19 and the ECC root was distrusted as a precaution. Downstream runtimes that ship their own trust stores (Go, Node.js, Electron, Python certifi, curl, etc.) needed emergency CA-bundle updates so they stop trusting the compromised chains.

read the full incident →

## advisories[5]