---
id: "CVE-2026-118275"
kind: "vulnerability"
aliases: ["CVE-2026-118275"]
title: "a2ui: resolveSignal flaw lets remote requests consume excessive resources"
severity: "medium"
cvss: 5.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["a2ui", "javascript", "package", "web-renderer"]
not_affected_if: ["unknown"]
published_at: "2026-10-28T04:17:59+00:00"
first_seen_at: "2026-10-28T04:30:58+00:00"
updated_at: "2026-10-28T04:32:06+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118275", "first_seen_at": "2026-10-28T04:30:58+00:00"}]
---

# a2ui: resolveSignal flaw lets remote requests consume excessive resources

The a2ui web renderer's DataContext.resolveSignal function, up to version 0.10.6, can be manipulated to consume resources. The sources say the attack can be launched remotely and a public exploit exists.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the a2ui version in `renderers/web_core` against `0.10.6`
- Look for `DataContext.resolveSignal` in `renderers/web_core/src/v0_9/rendering/data-context.ts`

## Fix

- Apply the patch commit `c76e17272e52c12c6dcf68905b1df978c39e9aa5` or move to a release newer than `0.10.6`

## Timeline

- 2026-10-28T04:30:58+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118275

## From the sources

A vulnerability was found in a2ui-project a2ui up to 0.10.6. This affects the function DataContext.resolveSignal of the file renderers/web_core/src/v0_9/rendering/data-context.ts of the component Resolver. The manipulation results in resource consumption. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as c76e17272e52c12c6dcf68905b1df978c39e9aa5. It is advisable to implement a patch to correct this issue.

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