Resource exhaustion in Ag-Ui-Protocol Ag-Ui
CVE-2026-120234
A weakness has been identified in ag-ui-protocol ag-ui up to 0.0.58. This impacts the function e.text of the component HTTP Transport. Executing a manipulation can lead to resource consumption. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Vulnerability class: DoS (Denial of Service)
Published .
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
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Ag-Ui-Protocol Ag-Ui — versions 0.0.1, 0.0.10, 0.0.11
Weakness classification (CWE)
References
- vuldb.com/vuln/429593 (technical-description, vdb-entry)
- vuldb.com/vuln/429593/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120234 (third-party-advisory)
- vuldb.com/submit/1015146 (third-party-advisory)
- github.com/ag-ui-protocol/ag-ui/issues/2521 (issue-tracking, exploit)
- github.com/ag-ui-protocol/ag-ui/pull/2698 (issue-tracking, patch)
- github.com/ag-ui-protocol/ag-ui/ (product)
Frequently asked questions
- What is CVE-2026-120234?
- CVE-2026-120234 is a medium-severity vulnerability in Ag-Ui-Protocol Ag-Ui, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-11-01.
- How severe is CVE-2026-120234?
- Medium severity. CVSS v3 base score is 4.3 out of 10.