{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-110715", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-14T14:39:52.987Z", "datePublished": "2026-10-14T15:01:29.904Z", "dateUpdated": "2026-10-15T19:13:59.760Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-14T15:01:29.904Z" }, "datePublic": "2026-03-02T00:00:00.000Z", "title": "MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort", "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787", "type": "CWE" } ] } ], "affected": [ { "vendor": "Artifex Software", "product": "MuJS", "defaultStatus": "unaffected", "versions": [ { "version": "1.3.6", "status": "affected", "versionType": "semver", "lessThan": "1.3.9" } ], "collectionURL": "https://codeberg.org/ccxvii/mujs", "repo": "https://codeberg.org/ccxvii/mujs" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.3.6", "versionEndExcluding": "1.3.9" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseScore": 6.1, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob", "tags": [ "technical-description", "exploit" ] }, { "url": "https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarray.c#L245", "tags": [ "technical-description" ] }, { "url": "https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396", "tags": [ "patch" ] }, { "url": "https://mujs.com/downloads/", "tags": [ "release-notes" ] }, { "url": "https://codeberg.org/ccxvii/mujs", "tags": [ "product" ] }, { "name": "VulnCheck Advisory: MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/mujs-1.3.6-before-1.3.9-heap-out-of-bounds-read-write-via-array-prototype-sort" } ], "credits": [ { "lang": "en", "value": "HaiND from the Post and Telecommunication Institute of Technology", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-15T19:12:30.683487Z", "id": "CVE-2026-110715", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T19:13:59.760Z" } } ] } }