eMudhra says weak keys left eight emSign G3 CA keys recoverable
Browsers are phasing out emSign G1 trust in November 2026; eMudhra says the G3 intermediates issued no public end-entity certificates.
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Browsers are phasing out emSign G1 trust in November 2026; eMudhra says the G3 intermediates issued no public end-entity certificates.

An unauthorized account read archived records from June 27 to July 2, 2026, after a 2025 migration left an internal system online.

About 22,000 handshakes presented the weak keys; Cloudflare says none intercepted its own connections.
macOS 27.2, released October 26, left git, curl, and python3 trusting the certificates and undid manual workarounds.

Eight recoverable intermediate keys could forge TLS or code-signing certificates; Microsoft says its own systems were not affected.

October 26 updates target offline Windows systems after eight April 2025 intermediate keys proved recoverable.
The October 26 update removes seven eMudhra-related certificates for devices that do not get automatic CTL updates.
Jeffrey Walton corrects himself and cites CA/Browser Forum baseline requirements for root CA validity.
A researcher showed eight intermediate private keys from an April 2025 ceremony can be recovered in seconds.
A short oss-security reply says the CA incident should raise priority for replacing certifi with truststore.
Eight P-384 keys held only a handful of bits of entropy, so a network attacker could impersonate the certificate holder.

Chrome is set to drop emSign ECC Root CA – G3 on the morning of October 27; Mozilla has already removed it.
The reply says distribution pip and requests should use the system certifi store.

Derived keys for eight intermediates can mint certificates for any domain; Okta reports no exploitation.
The forwarded note only cites a Python discussion statement and a comment, without describing the certificate impact.

Eight intermediates used 3- to 8-bit private keys that could be cracked in milliseconds to mint trusted certificates.
Stuart Henderson lists three Internet2 InCommon intermediates plus eMudhra intermediates under emSign ECC Root CA - G3.
Eight intermediate keys were trivial values; browsers blocked them, and the firm says nothing was breached.

Researcher recovered private keys of eight intermediate CAs that were below 256 bits, leading to root distrust and business exit.
Eight intermediate CA keys were tiny integers, including 4; the firm says none issued end-entity certificates.

Eight intermediate keys were integers below 256, one of them 4; major browsers blocked the certificates within days.
The company says affected CAs were revoked within 14 hours, with no end-entity certificates and no data breach.
A BSE filing says the firm will focus on enterprise solutions and trust services other than SSL/TLS.
The captured NVD page is only site chrome, so vendor, versions, severity, and impact are not in the text.
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