redis/redis-py · error · ConnectionError

No AIA information present in ssl certificate

Error message

No AIA information present in ssl certificate

What it means

Error "No AIA information present in ssl certificate" thrown in redis/redis-py.

Source

Thrown at redis/ocsp.py:216

        if der is False:
            raise ConnectionError("no certificate found for ssl peer")
        cert = self._bin2ascii(der)
        return self._certificate_components(cert)

    def _certificate_components(self, cert):
        """Given an SSL certificate, retract the useful components for
        validating the certificate status with an OCSP server.

        Args:
            cert ([bytes]): A PEM encoded ssl certificate
        """

        try:
            aia = cert.extensions.get_extension_for_oid(
                x509.oid.ExtensionOID.AUTHORITY_INFORMATION_ACCESS
            ).value
        except cryptography.x509.extensions.ExtensionNotFound:
            raise ConnectionError("No AIA information present in ssl certificate")

        # fetch certificate issuers
        issuers = [
            i
            for i in aia
            if i.access_method == x509.oid.AuthorityInformationAccessOID.CA_ISSUERS
        ]
        try:
            issuer = issuers[0].access_location.value
        except IndexError:
            issuer = None

        # now, the series of ocsp server entries
        ocsps = [
            i
            for i in aia
            if i.access_method == x509.oid.AuthorityInformationAccessOID.OCSP
        ]

View on GitHub (pinned to da03cdc7e8)

When it happens

Trigger: Thrown at redis/ocsp.py:216 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of redis/redis-py@da03cdc7e8 (2026-08-04). Data as JSON: /data/errors/58130283930e50bd.json. Report an issue: GitHub.