- CVE-2026-91768: fix FastCGI allowed_clients comparing only the first 96 bits of an IPv6 address in main/fastcgi.c (GHSA-62xp-839h-2637); add regression tests sapi/fpm/tests/ghsa-62xp-839h-2637-ipv6-allowed-clients.phpt and ghsa-62xp-839h-2637-v4mapped-allowed-clients.phpt, and backport the sapi/fpm/tests/logtool.inc helper update they need - CVE-2026-91767: fix out-of-bounds read in php_openssl_matches_wildcard_name() where the memchr() length underflowed when the wildcard prefix and suffix overlapped in the subject name, in ext/openssl/xp_ssl.c (GHSA-xr7j-rvgx-xq5p); add regression test ext/openssl/tests/GHSA-xr7j-rvgx-xq5p.phpt - CVE-2026-92842: fix out-of-bounds read in the base64-encode, quoted-printable-encode and quoted-printable-decode stream filters by using pestrndup() instead of the strlen-based pestrdup() for a line-break-chars value containing NUL, in ext/standard/filters.c (GHSA-88hq-2827-7pg6); add regression test ext/standard/tests/filters/ghsa-88hq-2827-7pg6.phpt - CVE-2026-93682: fix out-of-bounds read on an empty Location response header by using location_len instead of strlen() and skipping the relative-redirect join when location_len is 0, in ext/standard/http_fopen_wrapper.c; add regression tests ext/standard/tests/http/http_empty_location_redirect.phpt and http_single_char_location_redirect.phpt - CVE-2025-1218: fix the mysqlnd wire-protocol packet over-reads by bounding every length-encoded integer read against the bytes left in the packet, in ext/mysqlnd/mysqlnd_wireprotocol.c, mysqlnd_wireprotocol.h, mysqlnd_ps_codec.c and mysqlnd_ps.c (GHSA-r6x9-5r99-36j7), and backport the prerequisite auth_protocol over-read fix that bounds the greeting packet's plugin-name NUL scan; add the 38 regression tests ext/mysqli/tests/ghsa-r6x9-5r99-36j7-*.phpt and the ext/mysqli/tests/fake_server.inc helpers they need