{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0","last_affected":"0.28.1"}],"component":"horovod","cve_ids":["CVE-2026-31234"],"ecosystem":"PyPI","epss":0.01031,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-mf8f-x4r3-jm8c","id":"tcs_01M5KH5XT2B2EY0RGTYDNRTSA7","modified_at":"2026-07-01T20:22:54.309521Z","published_at":"2026-06-29T11:50:49.177992Z","references":["https://osv.dev/vulnerability/PYSEC-2026-354","https://nvd.nist.gov/vuln/detail/CVE-2026-31234","https://github.com/horovod/horovod","https://www.notion.so/CVE-2026-31234-35d1e139318881d585cde508b9d2453c","https://pypi.org/project/horovod","https://github.com/advisories/GHSA-mf8f-x4r3-jm8c"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"PYSEC-2026-354","url":"https://osv.dev/vulnerability/PYSEC-2026-354"}],"summary":"Horovod contains an insecure deserialization vulnerability in its KVStore HTTP server component"}