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OFFICIAL CVE RECORD8.5 High

CVE-2026-43627

llama.cpp b1283–b9058 Integer Overflow in llama_batch_init() Function

Description

llama.cpp builds b1283 through b9058 contain an integer overflow vulnerability in the llama_batch_init() function where unchecked multiplications in malloc() calls can wrap past INT32_MAX when computing allocation sizes. Attackers can pass specially crafted parameters to trigger integer overflow, causing heap corruption and potentially achieving arbitrary code execution through subsequent batch operations that write past allocated buffer boundaries.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ggml-org llama.cpp

Default version status: affected

  • b1283 to ≤ b9058affected

References