ANT-2026-QT406EDT · LibreOffice/core · Memory corruption (heap buffer overflow)

other medium CVE-2026-63274 Severity Claude high · Security research firm high · Maintainer medium Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Ada Logics. ANT-2026-QT406EDT: Heap overflow from unclamped /Length...