Vulnerability · Published Sep 28, 2026 · Assigned by VulDB

CVE-2026-101098ag-ui-protocol ag-ui HTTP JdkAgentHttpHandler.java readAllBytes resource consumption

Medium 4.3

In plain English

A medium-severity uncontrolled resource consumption in ag-ui from ag-ui-protocol. 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)4.3Medium

Exploit odds (30 days)0.3%top 76.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in ag-ui-protocol ag-ui up to 2026-09-23. Affected by this issue is the function readAllBytes of the file JdkAgentHttpHandler.java of the component HTTP Handler. Such manipulation leads to resource consumption. The attack can be launched remotely. The pull request to fix this issue awaits acceptance.

Affected products (as reported)

Vendor	Product	Versions
ag-ui-protocol	ag-ui	2026-09-23

Weakness: CWE-400, CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:C

References

VDB-410973 | ag-ui-protocol ag-ui HTTP JdkAgentHttpHandler.java readAllBytes resource consumption vdb-entry, technical-description
VDB-410973 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-101098 | CVE Analysis and Report third-party-advisory
Submit #934960 | ag-ui-protocol ag-ui v1.0 CWE-400 third-party-advisory
https://github.com/ag-ui-protocol/ag-ui/issues/2441 issue-tracking
https://github.com/ag-ui-protocol/ag-ui/pull/2671 issue-tracking, patch
https://github.com/ag-ui-protocol/ag-ui/ product