• eMudhra intermediate CA compromise

    From LWN.net@618:250/24 to All on Wed Oct 21 06:40:09 2026

    Mozilla has announced
    that it has received a report that private keys associated with eight eMudhra intermediate certificates have
    been compromised:

    These keys could allow attackers to issue fraudulent HTTPS certificates for websites they do not control. An attacker who could intercept a user's connection could use those certificates to impersonate websites and potentially read or modify traffic.

    Mozilla has blocked the affected certificates using its OneCRL
    centralized list of revoked certificates, and has updated the trusted certificate list in Network
    Security Services (NSS) 3.131.1.

    There is a single-page
    site about the compromise that goes into more detail. According to the site
    the certificates have also been blocked in Chrome since October 17, Apple devices since the 19th, and Microsoft blocked the certificates on the
    20th. There is also a table that displays whether a browser or other client still trusts the compromised certificates.

    The NetBSD foundation has issued
    instructions to block the certificates on NetBSD installations. Users of
    other browsers and operating systems may wish to check for updates or guidance to disable the compromised certificates.

    https://lwn.net/Articles/1101643/
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