CVE-2026-7260: fix stack exhaustion on circular symlinks in tar-based phar
archives; also backport upstream bug #69720 (NULL pointer dereference in
phar_get_fp_offset()), without which the fix only relocates the crash
CVE-2026-17543: fix SQL injection in ext/pgsql via backslash breakout from
E'...' literals
CVE-2026-9672: fix bundled libgd GIF decoder LZW table reset, end-code
handling and uninitialised state