Bug 2542598 (CVE-2026-101101)

Summary: CVE-2026-101101 ag-ui: ag-ui: Denial of Service via uncaught JSON parsing exception
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in ag-ui. A remote authenticated attacker can trigger an uncaught exception during JSON parsing by submitting malformed input to the middleware component. This failure can cause the application to crash unexpectedly, resulting in a Denial of Service (DoS).
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Description OSIDB Bzimport 2026-09-28 18:05:06 UTC
A vulnerability has been found in ag-ui-protocol ag-ui up to 2026-09-07. This issue affects the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation leads to uncaught exception. Remote exploitation of the attack is possible. Upgrading to version 2026-09-08 is capable of addressing this issue. The identifier of the patch is 30f8c794d5b73df5c610153043db502b2cc106cc. Upgrading the affected component is recommended.