SECURITY UPDATE: heap out-of-bounds write via paste box coordinates
near the signed 32-bit integer limits (ELSCVE-233283)
debian/patches/CVE-2026-59199.patch: compute the paste box
dimensions as int64_t in ImagingPaste() and ImagingFill2() in
src/libImaging/Paste.c. Adds a regression test in
Tests/test_image_paste.py.
CVE-2026-59199
SECURITY UPDATE: out-of-bounds read when memory-mapping McIdas AREA
images with an undersized row stride (ELSCVE-233312)
debian/patches/CVE-2026-54058.patch: raise the row stride to at
least one full row of pixels in PyImaging_MapBuffer() in src/map.c.
Adds a regression test in Tests/test_file_mcidas.py.