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Vulnerability record · CVE-2025-70560 · published 3 February 2026

CVE-2025-70560: Jwohlwend boltz deserialization of untrusted data vulnerability

JJwohlwend · Boltz

Boltz 2.0.0 contains an insecure deserialization vulnerability in its molecule loading functionality. The application uses Python pickle to deserialize molecule data files without validation. An attacker with the ability to place a malicious pickle file in a directory processed by boltz can achieve arbitrary code execution when the file is loaded.

8.4 CVSS 3.1 High EPSS 0.15% · top 96.4% CWE-502 · Deserialization of untrusted data
8.4CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Boltz 2.0.0 contains an insecure deserialization vulnerability in its molecule loading functionality. The application uses Python pickle to deserialize molecule data files without validation. An attacker with the ability to place a malicious pickle file in a directory processed by boltz can achieve arbitrary code execution when the file is loaded.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/advisories/GHSA-fjm6-8xp2-4fwc
https://github.com/jwohlwend/boltz/blob/cb04aeccdd480fd4db707f0bbafde538397fa2ac/src/boltz/data/mol.py#L80 Product
https://github.com/jwohlwend/boltz/issues/600 Issue Tracking

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Source: NIST National Vulnerability Database (record CVE-2025-70560), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.