{"schema":"threatline.record/2","record":{"id":"CVE-2026-110715","aliases":[],"summary":"MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort","details":"MuJS 1.3.6 before 1.3.9 contains a heap out-of-bounds read and write vulnerability in Array.prototype.sort that allows attackers to corrupt memory by inflating a simple array's length. Attackers can supply JavaScript that enlarges a dense array's length and calls sort, causing Ap_sort_cmp and Ap_sort_swap to access slots past the buffer and crash the process.","categories":["Unclassified"],"product":"MuJS","vendor":"Artifex Software","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110715","source_modified_at":"2026-10-15T19:13:59.760Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"MuJS","vendor":"Artifex Software","versions":[{"version":"1.3.6","status":"affected","versionType":"semver","lessThan":"1.3.9"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110715","source_modified_at":"2026-10-15T19:13:59.760Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"MuJS","ecosystem":null},"version":"1.3.9","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00172,"percentile":0.0627,"score_date":"2026-10-23"},"published_at":"2026-10-14T15:01:29.904Z","modified_at":"2026-10-15T19:13:59.760Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110715","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:13:59.760Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110715","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob","tags":["technical-description","exploit"]},{"source":"CVE List","url":"https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarray.c#L245","tags":["technical-description"]},{"source":"CVE List","url":"https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396","tags":["patch"]},{"source":"CVE List","url":"https://mujs.com/downloads/","tags":["release-notes"]},{"source":"CVE List","url":"https://codeberg.org/ccxvii/mujs","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/mujs-1.3.6-before-1.3.9-heap-out-of-bounds-read-write-via-array-prototype-sort","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T19:12:30.683487Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:13:59.760Z","content_hash":"6730263dcaff32e50a8a4d48d30cebc1992788d790939910b2f78cd5c0c45e7e"}}