Vulnerability Description
picklescan before 1.0.1 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to create arbitrary zero-byte files via logging.FileHandler class instantiation. Attackers can exploit this by crafting malicious pickle payloads to bypass RCE blocklists and create lock files or other filesystem artifacts, potentially causing denial of service or application disruption.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mmaitre314 | Picklescan | < 1.0.1 |
Related Weaknesses (CWE)
References
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-m7j5-r2p5-c39rExploitVendor Advisory
- https://www.vulncheck.com/advisories/picklescan-arbitrary-file-creation-via-loggThird Party Advisory
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-m7j5-r2p5-c39rExploitVendor Advisory
FAQ
What is CVE-2026-56304?
CVE-2026-56304 is a vulnerability with a CVSS score of 6.5 (MEDIUM). picklescan before 1.0.1 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to create arbitrary zero-byte files via logging.FileHandler class instantiation. Atta...
How severe is CVE-2026-56304?
CVE-2026-56304 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56304?
Check the references section above for vendor advisories and patch information. Affected products include: Mmaitre314 Picklescan.