{"action":"Upgrade ujson to 5.4.0 or later.","affected":[{"fixed":"5.4.0","introduced":"0"}],"component":"ujson","cve_ids":["CVE-2022-31117"],"ecosystem":"PyPI","epss":0.01876,"exploited":false,"fixed_versions":["5.4.0"],"ghsa_id":"GHSA-fm67-cv37-96ff","id":"tcs_01M5KGQAT05465MHFSYBZYV7KC","modified_at":"2026-07-07T11:46:02.150833922Z","published_at":"2026-07-06T08:03:30.989917Z","references":["https://osv.dev/vulnerability/PYSEC-2026-1056","https://github.com/ultrajson/ultrajson/security/advisories/GHSA-fm67-cv37-96ff","https://nvd.nist.gov/vuln/detail/CVE-2022-31117","https://github.com/ultrajson/ultrajson/commit/9c20de0f77b391093967e25d01fb48671104b15b","https://github.com/ultrajson/ultrajson","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NAU5N4A7EUK2AMUCOLYDD5ARXAJYZBD2","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OPPU5FZP3LCTXYORFH7NHUMYA5X66IA7","https://pypi.org/project/ujson","https://github.com/advisories/GHSA-fm67-cv37-96ff"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-1056","url":"https://osv.dev/vulnerability/PYSEC-2026-1056"}],"summary":"Potential double free of buffer during string decoding"}