CVE-2025-71353
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 0.0.28 fails to detect malicious pickle files that exploit torch._dynamo.guards.GuardBuilder.get function in reduce methods. Attackers can craft pickle files with embedded code that evades picklescan detection and executes arbitrary commands when 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 0.0.28 fails to detect malicious pickle files that exploit the torch._dynamo.guards.GuardBuilder.get function within reduce methods. Attackers can craft pickle payloads that evade the scanner's detection logic and achieve arbitrary code execution upon file loading.
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 picklescan versionRun `pip show picklescan` or `pip list | grep picklescan` to display the installed versionAffected if The installed version is lower than 0.0.28
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Compare version to 0.0.28If you obtained the version number, verify it is below 0.0.28Affected if Version is 0.0.27 or earlier, or the package cannot be found (implying an older installation)
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Identify if picklescan is used in your pipelineReview your codebase or deployment scripts to see if picklescan is invoked to scan pickle files from untrusted sourcesAffected if You rely on picklescan to validate pickle files and are running a version below 0.0.28
You are affected if you use picklescan version below 0.0.28 to scan pickle files, as the scanner can be bypassed by payloads exploiting torch._dynamo.guards.GuardBuilder.get 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 · scopedUpgrade picklescan to version 0.0.28 or later to remediate the detection bypass. Additionally, enforce a policy of not loading pickle files from untrusted sources, as pickle deserialization inherently carries execution risks.
0.0.28
- Check current picklescan version using: pip show picklescan or pip list | grep picklescan
- Upgrade picklescan to version 0.0.28 or later using: pip install picklescan>=0.0.28
- Verify the upgrade was successful by checking the installed version
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-71353 — 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-2025-71353 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
- No weaponised exploit code, or anything meant to cause harm
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