mbedtls/ChangeLog.d/x509-empty-authority-key-id.txt
Christopher Müller 16bd0ff4c6 Add ChangeLog entry for empty AuthorityKeyIdentifier
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Christopher Müller <chris@mechatronikmonkey.de>
2026-09-26 10:27:11 +02:00

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Bugfix
* Accept X.509 certificates whose AuthorityKeyIdentifier extension is an
empty SEQUENCE. All of its fields are optional, so such certificates
are syntactically valid, but they were rejected with
MBEDTLS_ERR_X509_INVALID_EXTENSIONS. This affected, for example, the
root certificate that some antivirus products install for HTTPS
scanning. Reported by CodingMarkus. Fixes #10253.