{"url":"http://public2.vulnerablecode.io/api/packages/966082?format=json","purl":"pkg:npm/flatted@3.2.5","type":"npm","namespace":"","name":"flatted","version":"3.2.5","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"3.4.2","latest_non_vulnerable_version":"3.4.2","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/77815?format=json","vulnerability_id":"VCID-m2jk-ey6c-9ka8","summary":"flatted is a circular JSON parser. Prior to version 3.4.2, the parse() function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the internal input buffer is a JavaScript Array, accessing it with the key \"__proto__\" returns Array.prototype via the inherited getter. This object is then treated as a legitimate parsed value and assigned as a property of the output object, effectively leaking a live reference to Array.prototype to the consumer. Any code that subsequently writes to that property will pollute the global prototype. This issue has been patched in version 3.4.2.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33228.json","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-33228.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-33228","reference_id":"","reference_type":"","scores":[{"value":"0.0007","scoring_system":"epss","scoring_elements":"0.215","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-33228"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33228","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-33228"},{"reference_url":"https://github.com/WebReflection/flatted","reference_id":"","reference_type":"","scores":[{"value":"8.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/WebReflection/flatted"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33228","reference_id":"","reference_type":"","scores":[{"value":"8.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33228"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1131462","reference_id":"1131462","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1131462"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449872","reference_id":"2449872","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2449872"},{"reference_url":"https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802","reference_id":"885ddcc33cf9657caf38c57c7be45ae1c5272802","reference_type":"","scores":[{"value":"8.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track*","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-03-24T17:35:34Z/"}],"url":"https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802"},{"reference_url":"https://github.com/advisories/GHSA-rf6f-7fwh-wjgh","reference_id":"GHSA-rf6f-7fwh-wjgh","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-rf6f-7fwh-wjgh"},{"reference_url":"https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh","reference_id":"GHSA-rf6f-7fwh-wjgh","reference_type":"","scores":[{"value":"8.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track*","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-03-24T17:35:34Z/"}],"url":"https://github.com/WebReflection/flatted/security/advisories/GHSA-rf6f-7fwh-wjgh"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:13826","reference_id":"RHSA-2026:13826","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:13826"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:9742","reference_id":"RHSA-2026:9742","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:9742"},{"reference_url":"https://github.com/WebReflection/flatted/releases/tag/v3.4.2","reference_id":"v3.4.2","reference_type":"","scores":[{"value":"8.9","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track*","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:T/P:M/B:A/M:M/D:R/2026-03-24T17:35:34Z/"}],"url":"https://github.com/WebReflection/flatted/releases/tag/v3.4.2"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/375247?format=json","purl":"pkg:npm/flatted@3.4.2","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/flatted@3.4.2"}],"aliases":["CVE-2026-33228","GHSA-rf6f-7fwh-wjgh"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-m2jk-ey6c-9ka8"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/77515?format=json","vulnerability_id":"VCID-qdww-pxjw-3fe9","summary":"flatted is a circular JSON parser. Prior to 3.4.0, flatted's parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32141.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-32141.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-32141","reference_id":"","reference_type":"","scores":[{"value":"0.00022","scoring_system":"epss","scoring_elements":"0.06323","published_at":"2026-06-11T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-32141"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-32141","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-32141"},{"reference_url":"https://github.com/WebReflection/flatted","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/WebReflection/flatted"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32141","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32141"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2447083","reference_id":"2447083","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2447083"},{"reference_url":"https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606","reference_id":"7eb65d857e1a40de11c47461cdbc8541449f0606","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-13T16:20:15Z/"}],"url":"https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606"},{"reference_url":"https://github.com/WebReflection/flatted/pull/88","reference_id":"88","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-13T16:20:15Z/"}],"url":"https://github.com/WebReflection/flatted/pull/88"},{"reference_url":"https://github.com/advisories/GHSA-25h7-pfq9-p65f","reference_id":"GHSA-25h7-pfq9-p65f","reference_type":"","scores":[],"url":"https://github.com/advisories/GHSA-25h7-pfq9-p65f"},{"reference_url":"https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f","reference_id":"GHSA-25h7-pfq9-p65f","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2026-03-13T16:20:15Z/"}],"url":"https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:13826","reference_id":"RHSA-2026:13826","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:13826"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:21772","reference_id":"RHSA-2026:21772","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:21772"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:5807","reference_id":"RHSA-2026:5807","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:5807"},{"reference_url":"https://access.redhat.com/errata/RHSA-2026:9742","reference_id":"RHSA-2026:9742","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2026:9742"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/375226?format=json","purl":"pkg:npm/flatted@3.4.0","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-m2jk-ey6c-9ka8"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/flatted@3.4.0"}],"aliases":["CVE-2026-32141","GHSA-25h7-pfq9-p65f"],"risk_score":3.4,"exploitability":"0.5","weighted_severity":"6.8","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qdww-pxjw-3fe9"}],"fixing_vulnerabilities":[],"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/packages/pkg:npm/flatted@3.2.5"}