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    CVE-2026-27448: pyOpenSSL SNI Callback Exception Can Fail Open in TLS Handshake

    The vulnerability described as CVE-2026-27448 appears to be centered on a subtle but important failure mode in pyOpenSSL: if an application’s set_tlsext_servername_callback throws an exception that is not handled correctly, the TLS handshake can be bypassed or left in an unsafe state. In...
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    • cve 2026 pyopenssl security python tls tls sni callback
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    • Forum: Security Alerts
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