CVE-2026-118275— a2ui-project a2ui Resolver data-context.ts DataContext.resolveSignal resource consumption

Quick assessment

Affected

a2ui-project a2ui

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 a2ui-project 的 a2ui 项目（版本 0.10.6 及以下）中发现一个漏洞。该漏洞影响组件 Resolver 中文件 renderers/web_core/src/v0_9/rendering/data-context.ts 的 DataContext.resolveSignal 函数。攻击者可通过远程操纵该函数，导致资源过度消耗。该漏洞的利用方式已被公开，可能被恶意利用。已发布的修复补丁标识为 c76e17272e52c12c6dcf68905b1df978c39e9aa5。建议尽快应用该补丁以

CVSS 5.3 · Medium Updated Oct 28, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

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Vulnerability Information

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Vulnerability Title

a2ui-project a2ui Resolver data-context.ts DataContext.resolveSignal resource consumption

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Source: CVE Program / CVE List V5

Vulnerability Type

未加控制的资源消耗(资源穷尽)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
a2ui-project	a2ui	0.10.0	`cpe:2.3:a:a2ui-project:a2ui::::::::`

II. Public POCs for CVE-2026-118275

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-118275

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Other References for CVE-2026-118275 (7)

https://github.com/a2ui-project/a2ui/commit/c76e17272e52c12c6dcf68905b1df978c39e9aa5 patch
https://github.com/a2ui-project/a2ui/issues/2388 exploit issue-tracking
https://github.com/a2ui-project/a2ui/pull/2432 issue-tracking patch
https://vuldb.com/cve/CVE-2026-118275 third-party-advisory
https://vuldb.com/vuln/427573/cti signature permissions-required
https://vuldb.com/submit/1015137 third-party-advisory
https://vuldb.com/vuln/427573 vdb-entry technical-description

https://www.cve.org/CVERecord?id=CVE-2026-118275

Same Patch Batch · a2ui-project · 2026-10-28 · 6 CVEs total

CVE-2026-118271	4.3 MEDIUM	a2ui-project a2ui data-context Resolver data-context.ts resource consumption
CVE-2026-118272	4.3 MEDIUM	a2ui-project a2ui Error data-context.ts DataContext.dispatchExpressionError information ex
CVE-2026-118273	4.3 MEDIUM	a2ui-project a2ui data-model.ts DataModel.set resource consumption
CVE-2026-118274	4.3 MEDIUM	a2ui-project a2ui Binder generic-binder.ts resource consumption
CVE-2026-118276	3.5 LOW	a2ui-project a2ui Parser expression_parser.ts formatString resource consumption

IV. Related Vulnerabilities

Same product: a2ui

Same vendor: a2ui-project

Same weakness: CWE-400