ANT-2026-GY2SF1XW · grok · Heap-buffer-overflow

heap-buffer-overflow high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-GY2SF1XW: Heap-buffer-overflow in...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the core sequence parsing process. An attacker can cause a crash or denial of service by providing a specially crafted HEIF file that manipulates the stco.entrycount, saio.entrycount, and saiz.samplecount values to...

CVE-2026-41069

Summary: CVE-2026-41069 affects libheif up to v1.21.2, where a malformed HEIF sequence can trigger an out-of-bounds read in core sequence parsing, leading to DoS. The issue occurs when stco.entry_count == 0 but saiz.sample_count > 0, causing the SampleAuxInfoReader loop to dereference an empty...