{"id":"CVE-2026-71498","aliases":["GHSA-j4r3-hg7j-8chg"],"url":"https://o3.security/vulnerability/CVE-2026-71498","summary":"node-re2: Out-of-bounds heap read in `replace`/`split` via a `Buffer` ending in a truncated multi-byte UTF-8 character → adjacent heap memory disclosed to JavaScript","details":"node-re2 provides RE2 regular expression bindings for Node.js. Prior to version 1.26.1, passing a Buffer whose final bytes form a truncated (incomplete) multi-byte UTF-8 sequence could cause the native binding to read past the end of the allocated buffer while attempting to decode the final, incomplete code point. This could result in an out-of-bounds read and potential disclosure of adjacent memory contents. This issue is fixed in version 1.26.1.","published":"2026-08-06T21:26:00.771Z","modified":"2026-09-12T03:30:27.469579407Z","cvss":{"score":5.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"},"epss":{"score":0.00221,"percentile":0.12835,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"re2","fixedVersion":"1.26.1"}],"fix":{"url":"https://github.com/uhop/node-re2/commit/9d72042a6a0da5bc523908b04808ea0e23867cc4","label":"uhop/node-re2@9d72042"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71498.json"},{"type":"ADVISORY","url":"https://github.com/uhop/node-re2/security/advisories/GHSA-j4r3-hg7j-8chg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71498"},{"type":"REPORT","url":"https://github.com/uhop/node-re2/issues/272"},{"type":"FIX","url":"https://github.com/uhop/node-re2/commit/9d72042a6a0da5bc523908b04808ea0e23867cc4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-12T03:30:27.469579407Z"}}