What’s Vulnerable › Vulnerabilities

CVE-2026-53875: picklescan - Scanning Bypass via Dynamic Eval in scan_pytorch

• Severity: high (CVSS 7.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-17 · updated 2026-10-26
• Weakness: CWE-95

Description

picklescan before 1.0.3 contains a scanning bypass vulnerability in the scan_pytorch function that allows attackers to embed malicious magic numbers via dynamic eval using the __reduce__ trick. Attackers can craft malicious PyTorch payloads that evade picklescan detection while remaining executable, enabling arbitrary code execution when loaded with torch.load().

Affected products

• picklescan: before 1.0.3 — fixed in 1.0.3

How to fix

Upgrade to a fixed version: picklescan 1.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/mmaitre314/picklescan/commit/134179474539648ba7dee1317959529fbd0e7f89
• https://github.com/mmaitre314/picklescan/commit/2a8383cfeb4158567f9770d86597300c9e508d0f
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-97f8-7cmv-76j2
• https://www.vulncheck.com/advisories/picklescan-scanning-bypass-via-dynamic-eval-in-scan-pytorch
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-97f8-7cmv-76j2

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