Security update for go1.26-openssl

Open Source Vulnerabilities openSUSE-SU-2026:21254-1

This update for go1.26-openssl fixes the following issues: Update to go1.26.4 (bsc#1255111). Security issues fixed: - CVE-2026-27140: cmd/go: trust layer bypass when using cgo and SWIG (bsc#1261653). - CVE-2026-27143: cmd/compile: possible memory corruption after bound check elimination (bsc#1261654). - CVE-2026-27144: cmd/compile: no-op interface conversion bypasses overlap checking (bsc#1261655). - CVE-2026-27145: crypto/x509: split candidate hostname only once (bsc#1267450). - CVE-2026-32280: crypto/x509: unexpected work during chain building (bsc#1261656). - CVE-2026-32281: crypto/x509: inefficient policy validation (bsc#1261657). - CVE-2026-32282: os: `Root.Chmod` can follow symlinks out of the root on Linux (bsc#1261658). - CVE-2026-32283: crypto/tls: multiple key update handshake messages can cause connection to deadlock (bsc#1261659). - CVE-2026-32288: archive/tar: unbounded allocation when parsing old format GNU sparse map (bsc#1261660). - CVE-2026-32289: html/template: JS template literal context incorrectly tracked (bsc#1261661). - CVE-2026-33810: crypto/x509: excluded DNS constraints not properly applied to wildcard domains (bsc#1261662). - CVE-2026-33811: net: crash when handling long `CNAME` response (bsc#1264508). - CVE-2026-33814: net/http: infinite loop in HTTP/2 transport when given bad `SETTINGS_MAX_FRAME_SIZE` (bsc#1264506). - CVE-2026-39817: cmd/go: `go tool pack` does not sanitize output paths (bsc#1264505). - CVE-2026-39819: cmd/go: `go bug` follows symlinks in predictable temporary filenames (bsc#1264504). - CVE-2026-39820: net/mail: quadratic string concatentation in `consumeComment` (bsc#1264503). - CVE-2026-39823: html/template: bypass of meta content URL escaping causes XSS (bsc#1264509). - CVE-2026-39825: net/http/httputil: `ReverseProxy` forwards queries with more than `urlmaxqueryparams` parameters (bsc#1264500). - CVE-2026-39826: html/template: escaper bypass leads to XSS (bsc#1264507). - CVE-2026-39836: net: panic in `Dial` and `LookupPort` when handling `NUL` byte on Windows (bsc#1264501). - CVE-2026-42499: net/mail: quadratic string concatenation in `consumePhrase` (bsc#1264502). - CVE-2026-42501: cmd/go: malicious module proxy can bypass checksum database (bsc#1264499). - CVE-2026-42504: mime: quadratic complexity in `WordDecoder.DecodeHeader` (bsc#1267442). - CVE-2026-42507: net/textproto: arbitrary input is included in errors without any escaping (bsc#1267444). Other updates and security fixes: - Go packages miss `binutils-gold` dependency (bsc#1170826). - Drop subpackage `go1.x-libstd` `std` library `.so` refs (jsc#PED-1962). - Use `libalternatives` only on `suse_version >= 1610` and keep `update-alternatives` support for older distributions. - Drop the `update-alternatives` migration path for `libalternatives` builds. - Enable `libalternatives` for SLE16.1 and Tumbleweed (bsc#1245878). - Drop go1.26 dependency on `update-alternatives` (bsc#1264395) - Update to version 1.26.3 cut from the `go1.25-fips-release` branch at the revision tagged `go1.26.3-1-openssl-fips` (jsc#SLE-18320).