12.1.1

Security

:cve:2026-25990: Fix OOB write with invalid tile extents ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Check that tile extents do not use negative x or y offsets when decoding or encoding, and raise an error if they do, rather than allowing an OOB write.

An out-of-bounds write may be triggered when opening a specially crafted PSD image. This only affects Pillow >= 10.3.0. Reported by Yarden Porat <https://github.com/yardenporat353>__.

Other changes

Patch libavif for svt-av1 4.0 compatibility ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

A patch has been added to depends/install_libavif.sh, to allow libavif 1.3.0 to be compatible with the recently released svt-av1 4.0.0.