CVE-2025-71356

picklescan - Arbitrary Code Execution via torch.fx.experimental.symbolic_shapes.ShapeEnv.evaluate_guards_expression

CVSS 7.6 HIGHEPSS 0.3%CWE-502

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.6EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

04 Jul 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

picklescan before 0.0.28 fails to detect malicious torch.fx.experimental.symbolic_shapes.ShapeEnv.evaluate_guards_expression function calls in pickle files. Attackers can embed undetected code in pickle files that executes remote code when loaded by victims.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Affected products

picklescan · picklescan

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-f4x7-rfwp-v3xw https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-torch-fx-experimental-symbolic-shapes-shapeenv-evaluate-guards-expression