{"id":"CVE-2026-41507","aliases":["GHSA-p6x5-p4xf-cc4r"],"url":"https://o3.security/vulnerability/CVE-2026-41507","summary":"Remote Code Execution (RCE) via String Literal Injection into math-codegen","details":"math-codegen generates code from mathematical expressions. Prior to version 0.4.3, string literal content passed to cg.parse() is injected verbatim into a new Function() body without sanitization. This allows an attacker to execute arbitrary system commands when user-controlled input reaches the parser. Any application exposing a math evaluation endpoint where user input flows into cg.parse() is vulnerable to full RCE. This issue has been patched in version 0.4.3.","published":"2026-05-08T13:49:34.091Z","modified":"2026-07-15T01:49:09.704301899Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00393,"percentile":0.32063,"asOf":"2026-08-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"math-codegen","fixedVersion":"0.4.3"}],"fix":{"url":"https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b","label":"mauriciopoppe/math-codegen@4bb52d3"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41507.json"},{"type":"ADVISORY","url":"https://github.com/mauriciopoppe/math-codegen/security/advisories/GHSA-p6x5-p4xf-cc4r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41507"},{"type":"FIX","url":"https://github.com/mauriciopoppe/math-codegen/commit/4bb52d3030683362b3559ee8dd91350555a05f6b"},{"type":"FIX","url":"https://github.com/mauriciopoppe/math-codegen/pull/11"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:09.704301899Z"}}