Heap-based Buffer Overflow Affecting ggerganov/llama.cpp package, versions [,b8146)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UNMANAGED-GGERGANOVLLAMACPP-15602093
- published15 Mar 2026
- disclosed12 Mar 2026
- creditAditya Gupta
Introduced: 12 Mar 2026
CVE-2026-27940 (opens in a new tab)How to fix?
Upgrade ggerganov/llama.cpp to version b8146 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the gguf_init_from_file_impl process. An attacker can execute arbitrary code or cause a denial of service by providing a specially crafted file that triggers an integer overflow, resulting in an undersized heap allocation and subsequent buffer overflow during the fread operation.