pickle.loads() on a non-literal byte string

What it detects

pickle.loads() on a non-literal byte string: an injection check run by the semgrep analyzer.

Evidence

The Semgrep source location, rule identity, and bounded match context normalized into Fendix evidence.

Remediation

pickle.loads() on a non-literal byte string — arbitrary code execution on deserialization. Replace with json.loads() for untrusted input. If pickle is strictly required, sign the payload (hmac) and verify before unpickling.

Limitations

This check is limited to the applicability and evidence delivered by semgrep. Review the evidence in context; a match is a finding input, while confidence and policy determine its disposition.

Related reference

Analyzer Registry · Findings and release decisions · Policy and confidence

Remediation guidance: Remediation and fix verification · Baselines and suppressions