Vulnerability Description
MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining __reduce__ is executed during deserialization, resulting in arbitrary code execution in the context of the application.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Project-Monai | Monai | < 1.5.2 |
Related Weaknesses (CWE)
References
- https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4ExploitVendor Advisory
- https://www.vulncheck.com/advisories/monai-before-1.5.2-remote-code-execution-viThird Party Advisory
- https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4ExploitVendor Advisory
FAQ
What is CVE-2026-100846?
CVE-2026-100846 is a vulnerability with a CVSS score of 7.6 (HIGH). MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pi...
How severe is CVE-2026-100846?
CVE-2026-100846 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100846?
Check the references section above for vendor advisories and patch information. Affected products include: Project-Monai Monai.