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Vulnerability record · CVE-2026-53873 · published 17 June 2026

CVE-2026-53873: picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module…

picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling profile.run(statement) to execute arbitrary Python code while picklescan reports zero security issues.

9.3 CVSS 4.0 Critical EPSS 0.67% · top 50.0% CWE-184 · CWE-184 Deferred
9.3CVSS 4.0 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

picklescan before 1.0.4 contains an incomplete blocklist for the profile module that fails to block the module-level profile.run() function, allowing attackers to achieve arbitrary code execution via exec(). Attackers can craft malicious pickle files calling profile.run(statement) to execute arbitrary Python code while picklescan reports zero security issues.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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:

References

LinkTags
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7wx9-6375-f5wh
https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-profile-run-blocklist-bypass
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7wx9-6375-f5wh

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Source: NIST National Vulnerability Database (record CVE-2026-53873), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.