Vulnerability · Published Oct 28, 2026 · Assigned by VulDB
CVE-2026-118275a2ui-project a2ui Resolver data-context.ts DataContext.resolveSignal resource consumption
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in a2ui from a2ui-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| a2ui-project | a2ui | 0.10.00.10.10.10.20.10.30.10.40.10.50.10.6 |
Weakness: CWE-400, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-427573 | a2ui-project a2ui Resolver data-context.ts DataContext.resolveSignal resource consumption vdb-entry, technical-description
- VDB-427573 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-118275 | CVE Analysis and Report third-party-advisory
- Submit #1015137 | a2ui-project a2ui <=0.10.6 CWE-400 third-party-advisory
- https://github.com/a2ui-project/a2ui/issues/2388 exploit, issue-tracking
- https://github.com/a2ui-project/a2ui/pull/2432 issue-tracking, patch
- https://github.com/a2ui-project/a2ui/commit/c76e17272e52c12c6dcf68905b1df978c39e9aa5 patch
- https://github.com/a2ui-project/a2ui/ product