Is CVE-2026-73325 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73325?

CVE-2026-73325 has a CVSS v3 severity of HIGH (7.8).

Back

CVE-2026-73325

Description

Fujitsu Research's OneCompression library 1.2.0 contains an unsafe deserialization vulnerability that allows attackers to execute arbitrary code by supplying a crafted model.pt checkpoint file, as QuantizedModelLoader.load_quantized_model_pt() unconditionally calls torch.load with weights_only=False, invoking Python's pickle machinery during deserialization. Attackers can embed malicious __reduce__ methods in a crafted model checkpoint to execute arbitrary Python code, including system commands, when the library loads the file from a caller-selected model directory.