Apple Swiftnio Ssl vulnerabilities

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Published CVEs affecting Apple Swiftnio Ssl: 1 record(s), with affected versions and fixes.
cpe:2.3:a:apple:swiftnio_ssl

CVE-2026-43820 High · 7.7 CWE-125 Jul 23, 2026

Out-of-bounds Read in Apple Swiftnio Ssl

NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access. This vulnerability is addressed in swift-nio-ssl version 2.37.2.