PatchSiren

PatchSiren cyber security CVE debrief

CVE-2025-71322 PickleScan CVE debrief

CVE-2025-71322 is a HIGH severity vulnerability in PickleScan before 0.0.33. The vulnerability allows attackers to bypass security checks and achieve arbitrary code execution when files are processed by PickleScan. Malicious actors can craft pickle payloads using the pty.spawn function to exploit this vulnerability. The vulnerability has a CVSS score of 8.7 and was published on June 17, 2026. The vendor, Unknown Vendor, has not provided a canonical source for this vulnerability. Organizations using PickleScan should take immediate action to mitigate this vulnerability.

Vendor
PickleScan
Product
Unknown
CVSS
HIGH 8.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-18
Advisory published
2026-06-17
Advisory updated
2026-06-18

Who should care

Organizations using PickleScan before 0.0.33 should prioritize patching this vulnerability to prevent potential code execution attacks. Security teams and administrators responsible for maintaining PickleScan installations should be aware of this vulnerability and take necessary actions.

Technical summary

The vulnerability exists in PickleScan before 0.0.33, where the pty.spawn function is not included in the unsafe globals list. This allows attackers to craft malicious pickle payloads that can bypass security checks and execute arbitrary code when processed by PickleScan. The vulnerability has a CVSS score of 8.7, indicating a high severity level. The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

Defensive priority

HIGH

Recommended defensive actions

  • Patch PickleScan to version 0.0.33 or later
  • Restrict access to PickleScan installations
  • Monitor PickleScan logs for suspicious activity
  • Implement additional security controls to detect and prevent code execution attacks
  • Consider using alternative pickle scanning tools
  • Keep PickleScan and its dependencies up-to-date
  • Perform regular security audits and vulnerability assessments

Evidence notes

The vulnerability information is based on data from the National Vulnerability Database (NVD) and other reliable sources. The CVSS score and vector are provided by the NVD. The vendor, Unknown Vendor, has not provided a canonical source for this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-71322 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-71322

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-71322 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-71322

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.