Artifex MuJS up to 1.3.8 Array Sort Ap_sort_cmp out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.80-

Summaryinfo

A vulnerability was found in Artifex MuJS up to 1.3.8. It has been classified as problematic. Impacted is the function Ap_sort_cmp of the component Array Sort. The manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2026-110715. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Artifex MuJS up to 1.3.8 and classified as problematic. This issue affects the function Ap_sort_cmp of the component Array Sort. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at hackmd.io. The identification of this vulnerability is CVE-2026-110715 since 10/14/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.3.9 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: MuJS 1.3.9

Timelineinfo

10/14/2026 Advisory disclosed
10/14/2026 +0 days CVE reserved
10/14/2026 +0 days VulDB entry created
10/14/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: artifex.com

Advisory: hackmd.io
Status: Confirmed

CVE: CVE-2026-110715 (🔒)
GCVE (CVE): GCVE-0-2026-110715
GCVE (VulDB): GCVE-100-419963

Entryinfo

Created: 10/14/2026 17:39
Changes: 10/14/2026 17:39 (76)
Complete: 🔍
Cache ID: 216::103

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