Critical Vulnerabilities Uncovered in llama.cpp's GGUF Parser: Immediate Action Required!

On May 15, 2026, a researcher revealed six vulnerabilities in the llama.cpp GGUF file parser, including a severe integer overflow flaw (V-01). These issues affect numerous tools leveraging llama.cpp. None carry CVE numbers, hindering automated detection. Recommendations include restricting model sources and validating alignment values. The advisory stresses urgency for users of Ollama and LM Studio. Immediate patches are awaited from maintainers.