CVE-2026-10043

Name: CVE-2026-10043
Creator: NVD / NIST
Published: 2026-06-24T22:16:46.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.29%

Last modified Jun 25, 2026

This CVE is reserved or awaiting analysis. Details will appear once published by NVD.

Description

MosaicML Composer Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MosaicML Composer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of checkpoints. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27990.

Metrics

CVSS 3.0

7.8/10

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.29%

21.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

References

Timeline

Published: Jun 24, 2026
Last Modified: Jun 25, 2026
Status: Awaiting Analysis

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Source: NVD / NIST