CVE-2025-71345
picklescan before 0.0.30 fails to detect malicious pickle files that invoke torch.utils.bottleneck.__main__.run_autograd_prof function. Atta
CVSS
8.1
High
EPSS
0.4%
p35
KEV
—
Exploit Today
10
0-100
Published: Jul 4, 2026 · Last modified: Jul 6, 2026 · CWE-502
0.4%EPSS · 30 days0.4%
2026-07-042026-07-19
picklescan before 0.0.30 fails to detect malicious pickle files that invoke torch.utils.bottleneck.__main__.run_autograd_prof function. Attackers can embed undetected code in pickle files that executes during deserialization, enabling remote code execution.
- github.comhttps://github.com/mmaitre314/picklescan/security/advisories/GHSA-4whj-rm5r-c2v8
- www.vulncheck.comhttps://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-torch-utils-bottleneck-main-run-autograd-prof
- github.comhttps://github.com/mmaitre314/picklescan/security/advisories/GHSA-4whj-rm5r-c2v8
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——29An undocumented and unsafe feature in the PLY (Python Lex-Yacc) library 3.11 allows Remote Code Execution (RCE) via the `picklefile` parameter in the `yacc()` function. This parameter accepts a `.pkl` file that is deserialized with `pickle.load()` without validation. Because `pickle` allows execution of embedded code via `__reduce__()`, an attacker can achieve code execution by passing a malicious pickle file. The parameter is not mentioned in official documentation or the GitHub repository, yet it is active in the PyPI version. This introduces a stealthy backdoor and persistence risk. NOTE: A third-party states that this vulnerability should be rejected because the proof of concept does not demonstrate arbitrary code execution and fails to complete successfully.5d