CVE-2026-116816
Published:October 27, 2026
Updated:October 29, 2026
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.
Affected Packages
llama-cpp (CONAN):
Affected version(s) =b6565 <0.6.0Fix Suggestion:
Update to version 0.6.0llama.cpp (CONDA):
Affected version(s) >=6191 <10333Fix Suggestion:
Update to version 10333https://github.com/ggml-org/llama.cpp.git (GITHUB):
Affected version(s) >=b5899 <b10261Fix Suggestion:
Update to version b10261Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Array Index
EPSS
Base Score:
0.14