Code execution via unsafe checkpoint deserialization
Published Jun 1, 2026 · Updated Jun 1, 2026
Unsafe deserialization in ESA AnomalyMatch before 1.3.1 allows attackers to execute arbitrary code through crafted model checkpoints. The model checkpoint loader passes checkpoint data to torch.load with weights_only=False, allowing Python pickle to invoke encoded callables during object reconstruction. Exploitation requires an attacker-produced or modified checkpoint to enter the normal loading workflow, and code runs with the AnomalyMatch user's privileges.
Summary
What happened
Unsafe deserialization in ESA AnomalyMatch before 1.3.1 allows attackers to execute arbitrary code through crafted model checkpoints. The model checkpoint loader passes checkpoint data to torch.load with weights_only=False, allowing Python pickle to invoke encoded callables during object reconstruction. Exploitation requires an attacker-produced or modified checkpoint to enter the normal loading workflow, and code runs with the AnomalyMatch user's privileges.
The record
- CVE
- CVE-2026-38950
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-502, T1203
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 1, 2026CVE publishedPublication date reported by the CVE source.
- Jun 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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