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CVE-2026-10043

HIGH
7.8
CVSS 3.0
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.

Metadata

CVE ID
CVE-2026-10043
State
PUBLISHED
Assigner
zdi
Reserved
2026-05-28 20:46 UTC
Published
2026-06-24 21:36 UTC
Last updated
2026-06-24 21:36 UTC
Primary CWE
CWE-502
CWE-502: Deserialization of Untrusted Data
Vendor / Product
MosaicML / Composer
Sources
cve.org  ·  NVD

Severity & Metrics

7.8 HIGH CVSS 3.0
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products (1)
VendorProductPlatformVersions
MosaicML Composer 0.32.1
Weakness (CWE)
CWESourceDescription
CWE-502 cna CWE-502: Deserialization of Untrusted Data
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.8 HIGH 3.0 cna CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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