Resource exhaustion in A2ui-Project A2ui
CVE-2026-118271
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (23.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
- A2ui-Project A2ui — versions 0.10.0, 0.10.1, 0.10.2
Weakness classification (CWE)
References
- vuldb.com/vuln/427569 (vdb-entry)
- vuldb.com/vuln/427569/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-118271 (third-party-advisory)
- vuldb.com/submit/1015115 (third-party-advisory)
- github.com/a2ui-project/a2ui/issues/2384 (issue-tracking, exploit)
- github.com/a2ui-project/a2ui/pull/2417 (issue-tracking, patch)
- github.com/a2ui-project/a2ui/commit/eb314e14fabd29cfb4a74e1202afc4fe2081efa2 (patch)
- github.com/a2ui-project/a2ui/ (product)
Frequently asked questions
- What is CVE-2026-118271?
- CVE-2026-118271 is a medium-severity vulnerability in A2ui-Project A2ui, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-10-28.
- How severe is CVE-2026-118271?
- Medium severity. CVSS v3 base score is 4.3 out of 10.