PatchSiren cyber security CVE debrief
CVE-2025-71367 picklescan CVE debrief
CVE-2025-71367 is a high-severity vulnerability in picklescan before version 0.0.34. The issue allows remote attackers to craft malicious pickle files using _operator.attrgetter in reduce methods, which can execute arbitrary code when processed by pickle.load(). This vulnerability has a CVSS score of 7.6 and is considered HIGH severity. The CVE was published on 2026-07-04T02:16:22.833Z and has not been modified since then. The vendor and product information is not clearly identified, with the vendor name listed as 'Unknown Vendor'.
- Vendor
- picklescan
- Product
- Unknown
- CVSS
- HIGH 7.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-04
- Original CVE updated
- 2026-07-04
- Advisory published
- 2026-07-04
- Advisory updated
- 2026-07-04
Who should care
Organizations using picklescan before version 0.0.34 should prioritize patching this vulnerability. Attackers can exploit this issue to execute arbitrary code, potentially leading to system compromise. The vulnerability's high severity and potential for remote exploitation make it a critical concern for defenders.
Technical summary
The vulnerability in picklescan arises from its failure to detect _operator.attrgetter function calls in pickle payloads. This allows attackers to bypass security checks and execute arbitrary code when pickle.load() processes maliciously crafted pickle files. The issue is particularly concerning because it can be exploited remotely, and the CVSS score of 7.6 reflects its high severity. The CWE-502 weakness is associated with this vulnerability, indicating that it involves deserialization of untrusted data.
Defensive priority
Defenders should prioritize patching picklescan to version 0.0.34 or later. In the meantime, restricting the use of pickle.load() on untrusted input and implementing additional security checks on pickle files can help mitigate the risk.
Recommended defensive actions
- Patch picklescan to version 0.0.34 or later
- Restrict the use of pickle.load() on untrusted input
- Implement additional security checks on pickle files
- Monitor for suspicious pickle file activity
- Inventory systems using picklescan for prioritized remediation
Evidence notes
The CVE and NVD provide official details on this vulnerability. Additional information is available from Vulncheck and GitHub advisories. However, some source information is limited, and further details may be needed to fully understand the vulnerability's impact and scope.
Official resources
This article is AI-assisted and based on the supplied source corpus.