{"cve":"CVE-2026-67550","nvd":{"published":"2026-07-30T20:18:15.030","modified":"2026-10-23T22:10:00.160","status":"Awaiting Analysis","description":"re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2 validates lastIndex against the UTF-8 byte length of a subject but uses it as a UTF-16 code-unit offset in exec, test, match, replace, and split, allowing an attacker-influenced lastIndex on a non-ASCII subject to trigger an out-of-bounds heap read and an uncatchable process crash, with limited heap information disclosure in some cases. This issue is fixed in 1.25.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","score":5.7},"cwes":["CWE-125"],"references":["https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d","https://github.com/uhop/node-re2/releases/tag/1.25.2","https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj","https://github.com/uhop/node-re2/security/advisories/GHSA-ff84-5f28-78qj"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-67550","score":0.00161,"percentile":0.05259,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-ff84-5f28-78qj","url":"https://osv.dev/vulnerability/GHSA-ff84-5f28-78qj","summary":"re2: Out-of-bounds heap read in `exec`/`test`/`match` via attacker-influenced `lastIndex` on a non-ASCII subject → uncatchable process crash (DoS)","modified":"2026-07-31T17:00:20.236795716Z","packages":[{"ecosystem":"npm","name":"re2","purl":"pkg:npm/re2","ranges":["<1.25.2"],"fixed":["1.25.2"]}]}],"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."]}