CVE-2026-10043: MosaicML Composer Deserialization of Untrusted Data Remote Code Execution Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-10043?
The severity of CVE-2026-10043 is rated as high with a score of 7.8.
How do I fix CVE-2026-10043?
To fix CVE-2026-10043, update to the latest version of MosaicML Composer that addresses this vulnerability.
What impact does CVE-2026-10043 have on systems?
CVE-2026-10043 allows remote attackers to execute arbitrary code on affected MosaicML Composer installations.
Is user interaction required to exploit CVE-2026-10043?
Yes, user interaction is required as the target must visit a malicious link to trigger the vulnerability.
Which software is affected by CVE-2026-10043?
CVE-2026-10043 affects installations of MosaicML Composer.