CVE Explorer
CVE-2026-10043
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 deser
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Composer","vendor":"MosaicML","versions":[{"status":"affected","version":"0.32.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:60953761ef6f5c9f32d4ddeb9104eae99eb06fadb28a3f761749737a872331d1 · sha256:4fbca9d92dcf3b9f… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"metric_type":"cvssV3_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:60953761ef6f5c9f32d4ddeb9104eae99eb06fadb28a3f761749737a872331d1 · sha256:4fbca9d92dcf3b9f… · /containers/cna/metrics/0/cvssV3_0
CWE assertions
1 source assertion{"cweId":"CWE-502","description":"CWE-502: Deserialization of Untrusted Data","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:60953761ef6f5c9f32d4ddeb9104eae99eb06fadb28a3f761749737a872331d1 · sha256:4fbca9d92dcf3b9f… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"vendor-provided URL","tags":["vendor-advisory"],"url":"https://github.com/mosaicml/composer/commit/6405188805a0054b4551ec49e4919c54c971d0e8"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:60953761ef6f5c9f32d4ddeb9104eae99eb06fadb28a3f761749737a872331d1 · sha256:4fbca9d92dcf3b9f… · /containers/cna/references/1
{"name":"ZDI-26-384","tags":["x_research-advisory"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-26-384/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:60953761ef6f5c9f32d4ddeb9104eae99eb06fadb28a3f761749737a872331d1 · sha256:4fbca9d92dcf3b9f… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.