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azure/js-jquery can be crashed by crafted input

published 3 months ago
Summary

The js-jquery package version 3.5.0-4 uses a function that can run out of memory when it processes specially crafted strings. An attacker could send a small request that makes the application consume all memory and stop working. Upgrade to version 5.0.8 or later, which adds limits to prevent this condition.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
Ecosystem VendorProductAffected versions
Azure Linux:3 azure js-jquery <= 3.5.0-4
Original advisory text
CVE-2026-14257 affecting package js-jquery 3.5.0-4
brace-expansion through 5.0.7 is vulnerable to denial of service via memory exhaustion. The expand() function limits the number of results with a max option (default 100,000) but does not bound the length of each result string. By chaining multiple brace groups, an attacker keeps the result count under the limit while making each result progressively longer, so total memory scales with both count and string length until the process hits a fatal, uncatchable out-of-memory error. About 7.5 KB of input ('{a,b}'.repeat(1500)) crashes a default Node.js process. Any application that passes attacker-influenced strings to brace-expansion.expand() - directly or transitively via minimatch / glob brace patterns - can be crashed by a small request. Fixed in 5.0.8 by adding a maxLength option (default 4,000,000) that bounds accumulated output and intermediate arrays.
Timeline
Published23 Jul 2026
Updated23 Sep 2026
First seen23 Sep 2026
Sources
AZL-94520 · OSV
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