{"id":"CVE-2026-115348","aliases":["GHSA-x2gr-6qf2-fc9x"],"url":"https://o3.security/vulnerability/CVE-2026-115348","summary":"Mistune before 3.3.0 Quadratic-Time DoS via parse_link_text","details":"Mistune from 3.0.0 before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser's parse_link_text function that allows unauthenticated attackers to exhaust CPU with unbalanced brackets. Attackers can submit Markdown containing many unbalanced '[' or '![' characters, forcing repeated unbounded forward scans and tying up worker processes for minutes.","published":"2026-10-22T19:13:25.416Z","modified":"2026-10-23T10:45:22.615116736Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115348.json"},{"type":"ADVISORY","url":"https://github.com/lepture/mistune/security/advisories/GHSA-x2gr-6qf2-fc9x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-115348"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/mistune-before-3.3.0-quadratic-time-dos-via-parse-link-text"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-23T10:45:22.615116736Z"}}