Search
Find a vulnerability
Search criteria
2 vulnerabilities found for MuJS by Artifex Software
CVE-2026-110715 (GCVE-0-2026-110715)
Vulnerability from nvd – Published: 2026-10-14 15:01 – Updated: 2026-10-15 19:13
VLAI
EPSS
VEX
Title
MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:12 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob | technical-descriptionexploit |
| https://codeberg.org/ccxvii/mujs/src/commit/307f1… | technical-description |
| https://codeberg.org/ccxvii/mujs/commit/32064e10c… | patch |
| https://mujs.com/downloads/ | release-notes |
| https://codeberg.org/ccxvii/mujs | product |
| https://www.vulncheck.com/advisories/mujs-1.3.6-b… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Artifex Software | MuJS |
Affected:
1.3.6 , < 1.3.9
(semver)
cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:* |
Date Public
2026-03-02 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-110715",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T19:12:30.683487Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T19:13:59.760Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://codeberg.org/ccxvii/mujs",
"defaultStatus": "unaffected",
"product": "MuJS",
"repo": "https://codeberg.org/ccxvii/mujs",
"vendor": "Artifex Software",
"versions": [
{
"lessThan": "1.3.9",
"status": "affected",
"version": "1.3.6",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.3.9",
"versionStartIncluding": "1.3.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "HaiND from the Post and Telecommunication Institute of Technology"
}
],
"datePublic": "2026-03-02T00:00:00.000Z",
"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\u0027s length. Attackers can supply JavaScript that enlarges a dense array\u0027s length and calls sort, causing Ap_sort_cmp and Ap_sort_swap to access slots past the buffer and crash the process."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-14T15:01:29.904Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"technical-description",
"exploit"
],
"url": "https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob"
},
{
"tags": [
"technical-description"
],
"url": "https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarray.c#L245"
},
{
"tags": [
"patch"
],
"url": "https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396"
},
{
"tags": [
"release-notes"
],
"url": "https://mujs.com/downloads/"
},
{
"tags": [
"product"
],
"url": "https://codeberg.org/ccxvii/mujs"
},
{
"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"
}
],
"title": "MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-110715",
"datePublished": "2026-10-14T15:01:29.904Z",
"dateReserved": "2026-10-14T14:39:52.987Z",
"dateUpdated": "2026-10-15T19:13:59.760Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-110715 (GCVE-0-2026-110715)
Vulnerability from cvelistv5 – Published: 2026-10-14 15:01 – Updated: 2026-10-15 19:13
VLAI
EPSS
VEX
Title
MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 19:12 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob | technical-descriptionexploit |
| https://codeberg.org/ccxvii/mujs/src/commit/307f1… | technical-description |
| https://codeberg.org/ccxvii/mujs/commit/32064e10c… | patch |
| https://mujs.com/downloads/ | release-notes |
| https://codeberg.org/ccxvii/mujs | product |
| https://www.vulncheck.com/advisories/mujs-1.3.6-b… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Artifex Software | MuJS |
Affected:
1.3.6 , < 1.3.9
(semver)
cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:* |
Date Public
2026-03-02 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-110715",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-15T19:12:30.683487Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-15T19:13:59.760Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://codeberg.org/ccxvii/mujs",
"defaultStatus": "unaffected",
"product": "MuJS",
"repo": "https://codeberg.org/ccxvii/mujs",
"vendor": "Artifex Software",
"versions": [
{
"lessThan": "1.3.9",
"status": "affected",
"version": "1.3.6",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:artifex:mujs:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.3.9",
"versionStartIncluding": "1.3.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "HaiND from the Post and Telecommunication Institute of Technology"
}
],
"datePublic": "2026-03-02T00:00:00.000Z",
"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\u0027s length. Attackers can supply JavaScript that enlarges a dense array\u0027s length and calls sort, causing Ap_sort_cmp and Ap_sort_swap to access slots past the buffer and crash the process."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-14T15:01:29.904Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"technical-description",
"exploit"
],
"url": "https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob"
},
{
"tags": [
"technical-description"
],
"url": "https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarray.c#L245"
},
{
"tags": [
"patch"
],
"url": "https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396"
},
{
"tags": [
"release-notes"
],
"url": "https://mujs.com/downloads/"
},
{
"tags": [
"product"
],
"url": "https://codeberg.org/ccxvii/mujs"
},
{
"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"
}
],
"title": "MuJS 1.3.6 before 1.3.9 Heap Out-of-Bounds Read/Write via Array.prototype.sort",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-110715",
"datePublished": "2026-10-14T15:01:29.904Z",
"dateReserved": "2026-10-14T14:39:52.987Z",
"dateUpdated": "2026-10-15T19:13:59.760Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}