CVE-2026-118272— a2ui-project a2ui Error data-context.ts DataContext.dispatchExpressionError information exposure

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）中发现一处漏洞。受影响的是位于文件中的函数，该函数属于错误处理（Error Handler）组件。攻击者可通过构造特定操作，利用错误消息导致信息泄露。该漏洞可被远程触发，且利用代码已公开，可能被恶意利用。修复补丁的提交哈希为。建议尽快应用该补丁以修复此问题。

CVSS 4.3 · Medium Updated Oct 28, 2026

Possible ATT&CK Techniques 2 AI

T1048 · Exfiltration Over Alternative Protocol T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

a2ui-project a2ui Error data-context.ts DataContext.dispatchExpressionError information exposure

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was detected in a2ui-project a2ui up to 0.10.6. Affected is the function DataContext.dispatchExpressionError of the file renderers/web_core/src/v0_9/rendering/data-context.ts of the component Error Handler. Performing a manipulation results in information exposure through error message. It is possible to initiate the attack remotely. The exploit is now public and may be used. The patch is named 8f149a1c7b0ce1fa8e93ac3adfa5fda960faeb01. It is suggested to install a patch to address this issue.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

通过错误消息导致的信息暴露

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-2026-118272

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-118272

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Other References for CVE-2026-118272 (7)

https://github.com/a2ui-project/a2ui/commit/8f149a1c7b0ce1fa8e93ac3adfa5fda960faeb01 patch
https://github.com/a2ui-project/a2ui/issues/2385 exploit issue-tracking
https://github.com/a2ui-project/a2ui/pull/2429 issue-tracking patch
https://vuldb.com/cve/CVE-2026-118272 third-party-advisory
https://vuldb.com/vuln/427570/cti signature permissions-required
https://vuldb.com/submit/1015116 third-party-advisory
https://vuldb.com/vuln/427570 vdb-entry technical-description

https://www.cve.org/CVERecord?id=CVE-2026-118272

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-2026-118271	4.3 MEDIUM	a2ui-project a2ui data-context Resolver data-context.ts resource consumption
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-209