{"cve":"CVE-2026-41680","nvd":{"published":"2026-04-24T18:16:29.567","modified":"2026-10-26T21:10:00.170","status":"Analyzed","description":"Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service (DoS) vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline (\\x09\\x0b\\n)—an unauthenticated attacker can trigger an infinite recursion loop during parsing. This leads to unbounded memory allocation, causing the host Node.js application to crash via Memory Exhaustion (OOM). This vulnerability is fixed in 18.0.2.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400","CWE-674","CWE-835"],"references":["https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7","https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7"],"products":["marked_project:marked"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-41680","score":0.00342,"percentile":0.27473,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-6v9c-7cg6-27q7","url":"https://osv.dev/vulnerability/GHSA-6v9c-7cg6-27q7","summary":"Marked Vulnerable to OOM Denial of Service via Infinite Recursion in marked Tokenizer","modified":"2026-05-05T16:11:33.907963Z","packages":[{"ecosystem":"npm","name":"marked","purl":"pkg:npm/marked","ranges":[">=18.0.0 <18.0.2"],"fixed":["18.0.2"]}]}],"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."]}