CVE-2026-40492

SAIL’s CVE-2026-40492 describes a heap buffer overflow in the XWD decoder caused by a mismatch: when pixmap_depth=8, the code uses bits_per_pixel=32 for byte-swapping, leading to memory access beyond the 1-byte/pixel buffer. The issue affects versions prior to the patch 36aa5c7ec8a2bb35f6fb867a11...