{"cve":"CVE-2025-54803","nvd":{"published":"2025-08-05T01:15:42.400","modified":"2026-06-17T09:40:44.017","status":"Analyzed","description":"js-toml is a TOML parser for JavaScript, fully compliant with the TOML 1.0.0 Spec. In versions below 1.0.2, a prototype pollution vulnerability in js-toml allows a remote attacker to add or modify properties of the global Object.prototype by parsing a maliciously crafted TOML input. This is fixed in version 1.0.2.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","score":7.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-1321"],"references":["https://gist.github.com/siunam321/f3dc4d21a5a932c67b6c11d0026f5afc","https://github.com/sunnyadn/js-toml/commit/b125910a3f094b744c9c3571360d4b9e3a472f66","https://github.com/sunnyadn/js-toml/security/advisories/GHSA-65fc-cr5f-v7r2","https://gist.github.com/siunam321/f3dc4d21a5a932c67b6c11d0026f5afc"],"products":["sunnyadn:js-toml"],"source":"nvd","synced_at":"2026-10-19T22:06:45.861874017+00:00"},"epss":{"cve":"CVE-2025-54803","score":0.00531,"percentile":0.44881,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-65fc-cr5f-v7r2","url":"https://osv.dev/vulnerability/GHSA-65fc-cr5f-v7r2","summary":"js-toml Prototype Pollution Vulnerability","modified":"2025-08-05T17:11:05Z","packages":[{"ecosystem":"npm","name":"js-toml","purl":"pkg:npm/js-toml","ranges":["<1.0.2"],"fixed":["1.0.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}