CVE-2025-71341
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 · uneditedpicklescan before 0.0.29 fails to detect the profile.Profile.runctx function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using profile.Profile.runctx in the reduce method to achieve remote code execution when the pickle file is loaded.
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 confidencepicklescan before version 0.0.29 fails to detect the profile.Profile.runctx function when scanning pickle files, creating a blind spot in its malicious code detection. Attackers can exploit this by embedding profile.Profile.runctx in the reduce method of a pickled object to achieve remote code execution when the file is loaded.
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 checksWork through these to decide whether this CVE applies to you.
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Check if picklescan is installedRun 'pip show picklescan' or 'pip list | grep picklescan' to see if the package is present in your Python environmentAffected if picklescan is not installed - you are not using the vulnerable scanner
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Determine the installed version of picklescanRun 'pip show picklescan' and look for the 'Version:' field, or use 'pip list' to list the installed versionAffected if The version cannot be determined or is not visible
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Compare your version to the affected rangeCompare the installed version number to version 0.0.29. Versions before 0.0.29 (such as 0.0.28, 0.0.27, etc.) are affected. Versions 0.0.29 and later are not affectedAffected if Your installed version is a number less than 0.0.29 (e.g., 0.0.28, 0.0.1, etc.) - you are using a vulnerable version of picklescan that may miss detection of profile.Profile.runctx in pickle files
You are affected by this CVE if you have picklescan installed and its version is less than 0.0.29, meaning your scanner may fail to detect malicious pickle files using the profile.Profile.runctx function in __reduce__ methods.
Generated from the published advisory. Verify against your own configuration.
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 · scopedUpdate picklescan to version 0.0.29 or later which includes detection for profile.Profile.runctx. Additionally, avoid loading pickle files from untrusted sources as a defense-in-depth measure.
picklescan 0.0.29
- Check the currently installed version of picklescan using: pip show picklescan or pip list | grep picklescan
- Upgrade picklescan to version 0.0.29 or later using: pip install picklescan>=0.0.29
- Verify the upgrade was successful by running: pip show picklescan and confirming the version is 0.0.29 or higher
- Test that the updated scanner now detects profile.Profile.runctx by scanning a test pickle file containing this function
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-71341 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-71341 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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