Allocation of Resources Without Limits or Throttling Affecting @a2ui/web_core package, versions <0.12.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Oct 2026
- disclosed28 Oct 2026
- creditez-lbz
Introduced: 28 Oct 2026
NewCVE-2026-118274 (opens in a new tab)How to fix?
Upgrade @a2ui/web_core to version 0.12.0 or higher.
Overview
@a2ui/web_core is an A2UI Core Library
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via unbounded dynamic ChildList materialization in GenericBinder and NodeResolver. When a container component is bound to a large data-model array through a dynamic ChildList template, GenericBinder maps every element into child component descriptors with no upper bound, and NodeResolver instantiates all of them on every state update. An authenticated attacker can supply an array of 100,000 or more items to trigger unbounded object creation and deep-cloning, exhausting client heap memory and locking the UI thread.