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VULNERABILITIES

CVE-2026-116816 Details

Description

llama.cpp b5899 before b10261 contains a heap out-of-bounds write vulnerability in llm_tokenizer_plamo2::build that allows attackers to corrupt heap memory via crafted GGUF models. Attackers can supply BYTE-typed token text like <0x-1> whose negative parsed value writes token ids before the bytes_ buffer during model loading, causing crashes or potential code execution.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/ggml-org/llama.cpp/blob/b10259/src/llama-vocab.cpp#L1376-L1377 [email protected]
https://github.com/ggml-org/llama.cpp/commit/cf06ad7dfe79e7bf2934150d4fefe1ce8db05490 [email protected]
https://github.com/ggml-org/llama.cpp/pull/25969 [email protected]
https://github.com/ggml-org/llama.cpp/pull/26511 [email protected]
https://github.com/ggml-org/llama.cpp/releases/tag/b10261 [email protected]

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-129Improper Validation of Array Index[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-116816
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Oct 31, 2026
Source:
[email protected]
CVE-2026-116816 Details - Not Deferred