CVE-2026-2069

Medium CVSS: 4.8

A flaw has been found in ggml-org llama.cpp up to 55abc39. Impacted is the function llama_grammar_advance_stack of the file llama.cpp/src/llama-grammar.cpp of the component GBNF Grammar Handler. This manipulation causes stack-based buffer overflow. The attack needs to be launched locally. The exploit has been published and may be used. Patch name: 18993. To fix this issue, it is recommended to deploy a patch.

Vendor

Product

CWE

CWE-119

Yayın Tarihi

2026-02-06 22:16:12

Güncelleme

2026-02-09 16:08:55

Source Identifier

cna@vuldb.com

KEV Date Added

Kategoriler

CWE-119 MEDIUM 2026

Referanslar

https://github.com/ggml-org/llama.cpp/ https://github.com/ggml-org/llama.cpp/issues/18988 https://github.com/ggml-org/llama.cpp/issues/18988#event-4426704865 https://github.com/ggml-org/llama.cpp/pull/18993 https://github.com/user-attachments/files/24761101/poc.zip https://vuldb.com/?ctiid.344636 https://vuldb.com/?id.344636 https://vuldb.com/?submit.745263