{"id":"AZL-104922","summary":"CVE-2026-91767 affecting package php 8.3.33-1","details":"php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.","modified":"2026-09-30T05:39:58Z","published":"2026-09-25T21:17:24Z","upstream":["CVE-2026-91767"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91767"}],"affected":[{"package":{"name":"php","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/php"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"8.3.33-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-104922.json"}}],"schema_version":"1.9.0"}