CVE-2026-110715
mediumMuJS 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…
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://codeberg.org/ccxvii/mujs disclosure@vulncheck.com
- https://codeberg.org/ccxvii/mujs/commit/32064e10caa45e68fc87331ca53d042049cc9396 disclosure@vulncheck.com
- https://codeberg.org/ccxvii/mujs/src/commit/307f18c4216420f2f56e22d8e7040baa39a6304a/jsarr... disclosure@vulncheck.com
- https://hackmd.io/@haind-pwn/mujs-array-length-flat-oob disclosure@vulncheck.com
- https://mujs.com/downloads/ disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/mujs-1.3.6-before-1.3.9-heap-out-of-bounds-read-write... disclosure@vulncheck.com