CVEvulnerability
CVE-2026-2069
1.9 LOW
Official page ↗
- Status
- Deferred
- Published
- 2026-02-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 1.9 LOW — CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- CVSS 2.0 ([email protected])
- 1.7 LOW — AV:L/AC:L/Au:S/C:N/I:N/A:P
- Weaknesses
- CWE-119, CWE-121
Description
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.
Related
References
- https://github.com/ggml-org/llama.cpp/ github.com
- https://github.com/ggml-org/llama.cpp/issues/18988 github.com
- https://github.com/ggml-org/llama.cpp/issues/18988#event-4426704865 github.com
- https://github.com/ggml-org/llama.cpp/pull/18993 github.com
- https://github.com/user-attachments/files/24761101/poc.zip github.com
- https://vuldb.com/?ctiid.344636 vuldb.com
- https://vuldb.com/?id.344636 vuldb.com
- https://vuldb.com/?submit.745263 vuldb.com