CVE-2025-71361
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 malicious idlelib.calltip.Calltip.fetch_tip calls in pickle files, allowing remote code execution. Attackers can embed undetected payloads in pickle files that execute arbitrary code when loaded via pickle.load().
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 has a detection bypass vulnerability where it fails to identify malicious idlelib.calltip.Calltip.fetch_tip calls embedded in pickle files. Attackers can craft pickle payloads that execute arbitrary code via pickle.load() while evading detection by this security scanner.
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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Identify if picklescan is installedRun 'pip show picklescan' or check your dependency manifest for the picklescan packageAffected if picklescan is present in your environment
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Determine the installed picklescan versionRun 'pip show picklescan' and note the Version field, or check your lock file for the specific version numberAffected if the version is lower than 0.0.29 or cannot be determined (implying an unpatched version)
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Verify your pickle scanning workflowReview your codebase or CI/CD pipeline for calls to picklescan CLI or API that scan pickle files from external or untrusted sourcesAffected if picklescan is used to validate pickle files before loading them
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Check for pickle.load usage with untrusted dataSearch your codebase for pickle.load() calls that process data from users, networks, or other untrusted sourcesAffected if your application loads pickle files from untrusted sources without additional validation
You are affected if picklescan version 0.0.29 or earlier is installed AND you rely on it to validate pickle files from untrusted sources before calling pickle.load().
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 · scopedUpgrade picklescan to version 0.0.29 or later to obtain the updated detection rules. Alternatively, implement additional validation or use a different pickle security scanner that detects this attack vector.
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 checking the installed version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-71361 — 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-2025-71361 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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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.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data