Vulnerability · Published Oct 28, 2026 · Assigned by VulDB

CVE-2026-118538a2ui-project a2ui Renderer root.js Root.renderComponentTree dynamically-determined object attributes

Medium 5.5

In plain English

A medium-severity security flaw in a2ui from a2ui-project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.3%top 77.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability was determined in a2ui-project a2ui up to 0.12.0. This issue affects the function Root.renderComponentTree of the file src/0.8/ui/root.js of the component Renderer. Executing a manipulation can lead to dynamically-determined object attributes. The attack may be launched remotely. The pull request to fix this issue awaits acceptance.

Affected products (as reported)

Vendor	Product	Versions
a2ui-project	a2ui	0.10.20.30.40.50.60.70.8

Weakness: CWE-915, CWE-913 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:X/RL:X/RC:C

References

VDB-428015 | a2ui-project a2ui Renderer root.js Root.renderComponentTree dynamically-determined object attributes vdb-entry, technical-description
VDB-428015 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-118538 | CVE Analysis and Report third-party-advisory
Submit #1020095 | a2ui-project a2ui <=0.12.0 CWE-915 third-party-advisory
https://github.com/a2ui-project/a2ui/issues/3076 issue-tracking
https://github.com/a2ui-project/a2ui/pull/3107 issue-tracking, patch
https://github.com/a2ui-project/a2ui/ product