ImageMagick Alert (CVE-2026-23876): “XBM” Image Uploads Trigger Massive Heap Overflow

**ImageMagick CVE-2026-23876:** A high-severity integer-truncation flaw in the XBM decoder can cause a massive heap buffer overflow when processing crafted XBM images; with a CVSS of 8.1, the vulnerability allows remote attackers to upload images that overwrite heap memory and potentially achieve code execution. Affected versions are ImageMagick prior to 7.1.2-13 and 6.9.13-38; maintainers released patches and administrators should upgrade immediately.