vulnerability / NVI-00016394 / Revision 1
Incomplete Fix in MONAI: algo_from_pickle() pickle.loads() RCE still present in v1.5.2 despite GHSA-89gg-p5r5-q6r4 claiming patch
GitHub lists this reviewed advisory for monai. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.
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01 / Meaning
Why it matters
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7.8 high
GitHub source severity; exploitability and local consequence require separate evidence.
As of · GitHub Advisory Database
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
monai
source listed< 1.6.0
## Summary GHSA-89gg-p5r5-q6r4 claims the pickle deserialization vulnerability in `algo_from_pickle()` was fixed in v1.5.2. However, `monai/auto3dseg/utils.py` has not been modified since 2024-07-12 — 18 months before v1.5.2 was released (2026-01-29). All three `pickle.loads()` calls remain unchanged. The fix was never implemented. ## Vulnerable Code File: `monai/auto3dseg/utils.py` (last commit: 2024-07-12, unchanged in v1.5.2) ```python def algo_from_pickle(pkl_filename: str, ...): with open(pkl_filename, "rb") as f_pi: data_bytes = f_pi.read() data = pickle.loads(data_bytes) # SINK 1 — line 321, RCE fires here # isinstance/key checks happen AFTER deserialization — already too late algo_bytes = data.pop("algo_bytes") ... if len(template_paths_candidates) == 0: algo = pickle.loads(algo_bytes) # SINK 2 — line 350 else: for p in template_paths_candidates: algo = pickle.loads(algo_bytes) # SINK 3 — line 356 No Unpickler subclass, no find_class restriction, no allowlist. Why the Fix is Incomplete - monai/auto3dseg/utils.py last commit: 2024-07-12 ("drop
03 / Response
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- investigate
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04 / Limits
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05 / Provenance
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- GHSA-qxq5-qhx6-94qw ↗
GitHub Advisory Database · vendor advisory
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- Revision 1 ·
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