Out-of-Bounds Affecting ggml-org/ggml package, versions [,0.9.9)
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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Test your applications- Snyk IDSNYK-UNMANAGED-GGMLORGGGML-15929054
- published8 Apr 2026
- disclosed1 Apr 2026
- creditHeapSmasher
Introduced: 1 Apr 2026
CVE-2026-34159 (opens in a new tab)How to fix?
Upgrade ggml-org/ggml to version 0.9.9 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-Bounds in the deserialize_tensor() function of the RPC backend when the buffer field is set to 0, which causes all bounds validation to be skipped. An attacker can read and write arbitrary process memory and achieve remote code execution by sending crafted GRAPH_COMPUTE messages to the RPC server port.
Note:
This is only exploitable if the attacker has TCP access to the RPC server port.