picklescan up to 0.0.28 Autocomplete deserialization

Summaryinfo

A vulnerability described as critical has been identified in picklescan up to 0.0.28. Affected is the function idlelib.autocomplete.AutoComplete.fetch_completions of the component Autocomplete Handler. The manipulation results in deserialization. This vulnerability was named CVE-2025-71376. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in picklescan up to 0.0.28. Affected is the function idlelib.autocomplete.AutoComplete.fetch_completions of the component Autocomplete Handler. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

picklescan before 0.0.29 fails to detect malicious pickle files using idlelib.autocomplete.AutoComplete.fetch_completions in reduce methods. Attackers can embed undetected code in pickle files that executes arbitrary commands when loaded by victims.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-71376 since 06/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 0.0.29 eliminates this vulnerability.

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Productinfo

Name

• picklescan

Version

• 0.0.1
• 0.0.2
• 0.0.3
• 0.0.4
• 0.0.5
• 0.0.6
• 0.0.7
• 0.0.8
• 0.0.9
• 0.0.10
• 0.0.11
• 0.0.12
• 0.0.13
• 0.0.14
• 0.0.15
• 0.0.16
• 0.0.17
• 0.0.18
• 0.0.19
• 0.0.20
• 0.0.21
• 0.0.22
• 0.0.23
• 0.0.24
• 0.0.25
• 0.0.26
• 0.0.27
• 0.0.28

CPE 2.3info

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CPE 2.2info

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