CVE-2026-118271— a2ui-project a2ui data-context Resolver data-context.ts 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 组件（版本 0.10.6 及以下）中发现了一个安全漏洞。该漏洞影响文件中 data-context Resolver 组件的某个未知功能。攻击者可通过远程方式利用此漏洞进行操纵，导致资源消耗。该漏洞的利用方式已公开披露，且可被实际利用。修复补丁的提交哈希为。建议立即应用该补丁以解决此问题。

CVSS 4.3 · 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 data-context Resolver data-context.ts resource consumption

Source: CVE Program / CVE List V5

Vulnerability Description

A security vulnerability has been detected in a2ui-project a2ui up to 0.10.6. This impacts an unknown function of the file renderers/web_core/src/v0_9/rendering/data-context.ts of the component data-context Resolver. Such manipulation leads to resource consumption. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The name of the patch is eb314e14fabd29cfb4a74e1202afc4fe2081efa2. Applying a patch is advised to resolve this issue.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/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-2026-118271

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-118271

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Other References for CVE-2026-118271 (7)

https://github.com/a2ui-project/a2ui/issues/2384 exploit issue-tracking
https://github.com/a2ui-project/a2ui/pull/2417 issue-tracking patch
https://github.com/a2ui-project/a2ui/commit/eb314e14fabd29cfb4a74e1202afc4fe2081efa2 patch
https://vuldb.com/cve/CVE-2026-118271 third-party-advisory
https://vuldb.com/vuln/427569/cti signature permissions-required
https://vuldb.com/submit/1015115 third-party-advisory
https://vuldb.com/vuln/427569 vdb-entry

https://www.cve.org/CVERecord?id=CVE-2026-118271

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

CVE-2026-118275	5.3 MEDIUM	a2ui-project a2ui Resolver data-context.ts DataContext.resolveSignal 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