{"id":"CVE-2024-34359","aliases":["GHSA-56xg-wfcc-g829","PYSEC-2026-392"],"url":"https://o3.security/vulnerability/CVE-2024-34359","summary":"llama-cpp-python vulnerable to Remote Code Execution by Server-Side Template Injection in Model Metadata","details":"llama-cpp-python is the Python bindings for llama.cpp. `llama-cpp-python` depends on class `Llama` in `llama.py` to load `.gguf` llama.cpp or Latency Machine Learning Models. The `__init__` constructor built in the `Llama` takes several parameters to configure the loading and running of the model. Other than `NUMA, LoRa settings`, `loading tokenizers,` and `hardware settings`, `__init__` also loads the `chat template` from targeted `.gguf` 's Metadata and furtherly parses it to `llama_chat_format.Jinja2ChatFormatter.to_chat_handler()` to construct the `self.chat_handler` for this model. Nevertheless, `Jinja2ChatFormatter` parse the `chat template` within the Metadate with sandbox-less `jinja2.Environment`, which is furthermore rendered in `__call__` to construct the `prompt` of interaction. This allows `jinja2` Server Side Template Injection which leads to remote code execution by a carefully constructed payload.","published":"2024-05-10T17:07:18.850Z","modified":"2026-08-12T03:51:11.089507882Z","cvss":{"score":9.6,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"llama-cpp-python","fixedVersion":"0.2.72"}],"fix":{"url":"https://github.com/abetlen/llama-cpp-python/commit/b454f40a9a1787b2b5659cd2cb00819d983185df","label":"abetlen/llama-cpp-python@b454f40"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34359.json"},{"type":"ADVISORY","url":"https://github.com/abetlen/llama-cpp-python/security/advisories/GHSA-56xg-wfcc-g829"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34359"},{"type":"FIX","url":"https://github.com/abetlen/llama-cpp-python/commit/b454f40a9a1787b2b5659cd2cb00819d983185df"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:11.089507882Z"}}