unsloth/studio/backend/assets/configs/model_defaults/default.yaml
Daniel Han f08aef1804 Studio (#4237)
* Rebuild Studio branch on top of main

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Fix security and code quality issues for Studio PR #4237

- Validate models_dir query param against allowed directory roots
  to prevent path traversal in /api/models/local endpoint
- Replace string startswith() with Path.is_relative_to() for
  frontend path traversal check in serve_frontend
- Sanitize SSE error messages to not leak exception details to
  clients (4 locations in inference.py)
- Bind port-discovery socket to 127.0.0.1 instead of all interfaces
  in llama_cpp backend
- Import datasets_root and resolve_output_dir in embedding training
  function to fix NameError and use managed output directory
- Remove stale .gitignore entries for package-lock.json and test
  directories so tests can be tracked in version control
- Add venv-reexecution logic to ui CLI command matching the studio
  command behavior

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Move models_dir path validation before try/except block

The HTTPException(403) was inside the try/except Exception handler,
so it would be caught and re-raised as a 500. Moving the validation
before the try block ensures the 403 is returned directly and also
makes the control flow clearer for static analysis (path is validated
before any filesystem operations).

* Use os.path.realpath + startswith for models_dir validation

CodeQL py/path-injection does not recognize Path.is_relative_to() as
a sanitizer. Switched to os.path.realpath + str.startswith which is
a recognized sanitizer pattern in CodeQL's taint analysis. The
startswith check uses root_str + os.sep to prevent prefix collisions
(e.g. /app/models_evil matching /app/models).

* Never pass user input to Path constructor in models_dir validation

CodeQL traces taint through Path(resolved) even after a startswith
barrier guard. Fix: the user-supplied models_dir is only used as a
string for comparison against allowed roots. The Path object passed
to _scan_models_dir comes from the trusted allowed_roots list, not
from user input. This fully breaks the taint chain.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2026-03-12 03:36:19 -07:00

56 lines
1 KiB
YAML

# Default model training parameters
# Used for models without specific configurations
training:
trust_remote_code: false
max_seq_length: 2048
# num_epochs: 4
num_epochs: 0
learning_rate: 5e-5
batch_size: 2
gradient_accumulation_steps: 4
warmup_ratio: 0.1
max_steps: 30
save_steps: 30
weight_decay: 0.01
random_seed: 3407
packing: false
train_on_completions: true
gradient_checkpointing: "unsloth"
optim: "adamw_8bit"
lr_scheduler_type: "linear"
lora:
lora_r: 16
lora_alpha: 16
lora_dropout: 0.0
target_modules:
- "q_proj"
- "k_proj"
- "v_proj"
- "o_proj"
- "gate_proj"
- "up_proj"
- "down_proj"
use_rslora: false
use_loftq: false
finetune_vision_layers: true
finetune_language_layers: true
finetune_attention_modules: true
finetune_mlp_modules: true
logging:
enable_wandb: false
wandb_project: "llm-finetuning"
enable_tensorboard: false
tensorboard_dir: "runs"
log_frequency: 10
inference:
trust_remote_code: false
temperature: 0.7
top_p: 0.95
top_k: -1
min_p: 0.01