{"action":"Upgrade ujson to 5.12.0 or later.","affected":[{"fixed":"5.12.0","introduced":"5.4.0"}],"component":"ujson","cve_ids":["CVE-2026-32874"],"ecosystem":"PyPI","epss":0.00497,"exploited":false,"fixed_versions":["5.12.0"],"ghsa_id":"GHSA-wgvc-ghv9-3pmm","id":"tcs_01M5KG26DWS263E50R2P8SE1EW","modified_at":"2026-09-10T03:50:41.558110605Z","published_at":"2026-03-18T13:01:15Z","references":["https://osv.dev/vulnerability/GHSA-wgvc-ghv9-3pmm","https://github.com/ultrajson/ultrajson/security/advisories/GHSA-wgvc-ghv9-3pmm","https://nvd.nist.gov/vuln/detail/CVE-2026-32874","https://github.com/ultrajson/ultrajson/commit/4baeb950df780092bd3c89fc702a868e99a3a1d2","https://github.com/ultrajson/ultrajson","https://github.com/ultrajson/ultrajson/releases/tag/5.12.0"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-wgvc-ghv9-3pmm","url":"https://osv.dev/vulnerability/GHSA-wgvc-ghv9-3pmm"}],"summary":"UltraJSON has a Memory Leak parsing large integers allows DoS"}