{"schema":"threatline.record/2","record":{"id":"CVE-2026-115348","aliases":["GHSA-x2gr-6qf2-fc9x"],"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.","categories":["Unclassified"],"product":"mistune","vendor":"lepture","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115348","source_modified_at":"2026-10-23T21:07:57.729Z","fetched_at":"2026-10-23T21:10:45.942435Z","product":"mistune","vendor":"lepture","versions":[{"version":"3.0.0","status":"affected","versionType":"semver","lessThan":"3.3.0"},{"version":"3.3.0","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115348","source_modified_at":"2026-10-23T21:07:57.729Z","fetched_at":"2026-10-23T21:10:45.942435Z","package":{"name":"mistune","ecosystem":null},"version":"3.3.0","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00359,"percentile":0.28449,"score_date":"2026-10-23"},"published_at":"2026-10-22T19:13:25.416Z","modified_at":"2026-10-23T21:07:57.729Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115348","fetched_at":"2026-10-23T21:10:45.942435Z","source_modified_at":"2026-10-23T21:07:57.729Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115348","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/lepture/mistune/security/advisories/GHSA-x2gr-6qf2-fc9x","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/mistune-before-3.3.0-quadratic-time-dos-via-parse-link-text","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-23T17:33:00.385741Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T21:07:57.729Z","content_hash":"1dc313e23a1478e4d9a9b5f83fc8e25113df8f40aa09dd8d248c274d899c38e5"}}