Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-71350

HIGH · 8.1 CVSS v3.1 Published 2026-06-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
88/100
Remediation priority · High
Remotely reachable No privileges 8 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
picklescan before 0.0.28 fails to detect malicious pickle files using torch.utils.collect_env.run function in reduce methods. Attackers can embed undetected code in pickle files that executes remote commands when loaded by victims.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

picklescan before 0.0.28 fails to detect malicious pickle files that use torch.utils.collect_env.run function within reduce methods. Attackers can embed code that executes remote commands when victims load these crafted pickle files, bypassing the scanner's detection capabilities.

MitigationUpgrade picklescan to version 0.0.28 or later to address the detection gap. Additionally, avoid loading pickle files from untrusted sources and consider safer serialization formats like JSON where possible.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify picklescan installation
    Run 'pip show picklescan' or 'pip list | grep picklescan' to find the installed version
    Affected if Version displayed is lower than 0.0.28 or the package is not found
  2. Check picklescan version number
    Extract the version from the pip output and compare it to 0.0.28
    Affected if The version string shows a number lower than 0.0.28 (for example, 0.0.27, 0.0.26, etc.)
  3. Verify pickle file scanning workflow
    Inspect how picklescan is invoked in your environment - check CI/CD pipelines, scripts, or automation that call picklescan against pickle files
    Affected if Picklescan is used to scan pickle files from potentially untrusted sources and the tool version is below 0.0.28
  4. Confirm torch pickle handling
    Review whether your picklescan scans pickle files that may contain PyTorch-related data using torch.utils.collect_env.run in reduce methods
    Affected if You scan PyTorch pickle files and rely on picklescan for security filtering with a version before 0.0.28

You are affected if picklescan version is below 0.0.28 and you use it to scan pickle files, particularly PyTorch-related ones that could contain malicious torch.utils.collect_env.run payloads.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade picklescan to version 0.0.28 or later to address the detection gap. Additionally, avoid loading pickle files from untrusted sources and consider safer serialization formats like JSON where possible.

Recommended fix High confidence

picklescan version 0.0.28 or later

  1. Verify current picklescan version using: pip show picklescan or pip list | grep picklescan
  2. Upgrade picklescan to version 0.0.28 or later using: pip install picklescan>=0.0.28
  3. Verify the upgrade was successful by checking the installed version
  4. If using picklescan in automated scanning workflows, verify the scanner correctly identifies malicious pickle files with torch.utils.collect_env.run in reduce methods

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-71350 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-71350 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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