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    CVE-2026-92360

    A weakness has been identified in ag-ui-protocol ag-ui 1.0. The impacted element is the function prepareRunAgentInput of the file agent/agent.ts of the component Event Application Layer. This manipulation of the argument TEXT_MESSAGE_START causes origin validation error. Remote exploitation of the attack is possible. The pull request to fix this issue awaits acceptance.

    Published:Sep 16, 2026
    Last Modified:Sep 23, 2026
    EPS:Sep 16, 2026
    EPSS Score:0.00176
    CVSS Score:6.3

    Affected Products

    Vendor
    Ag-ui-protocol
    Product
    Ag-ui

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-111 JSON Hijacking (aka JavaScript Hijacking)
    CAPEC-141 Cache Poisoning
    CAPEC-142 DNS Cache Poisoning
    CAPEC-148 Content Spoofing
    CAPEC-160 Exploit Script-Based APIs
    CAPEC-21 Exploitation of Trusted Identifiers
    CAPEC-218 Spoofing of UDDI/ebXML Messages
    CAPEC-384 Application API Message Manipulation via Man-in-the-Middle
    CAPEC-385 Transaction or Event Tampering via Application API Manipulation
    CAPEC-386 Application API Navigation Remapping
    CAPEC-387 Navigation Remapping To Propagate Malicious Content
    CAPEC-388 Application API Button Hijacking
    CAPEC-510 SaaS User Request Forgery
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-665 Exploitation of Thunderbolt Protection Flaws
    CAPEC-701 Browser in the Middle (BiTM)
    CAPEC-75 Manipulating Writeable Configuration Files
    CAPEC-76 Manipulating Web Input to File System Calls
    CAPEC-89 Pharming

    Related CVEs

    CVE-2026-120237 (CVSS 2.1) — A flaw has been found in ag-ui-protocol ag-ui up to 0.0.58. Affected by this issue is the function isInterrupt…
    CVE-2026-120236 (CVSS 2.1) — A vulnerability was detected in ag-ui-protocol ag-ui up to 0.0.58. Affected by this vulnerability is an unknow…
    CVE-2026-120235 (CVSS 2.1) — A security vulnerability has been detected in ag-ui-protocol ag-ui up to 0.0.58. Affected is the function pars…
    CVE-2026-120234 (CVSS 2.1) — A weakness has been identified in ag-ui-protocol ag-ui up to 0.0.58. This impacts the function e.text of the c…
    CVE-2026-120233 (CVSS 5.5) — A security flaw has been discovered in ag-ui-protocol ag-ui up to 0.0.58. This affects an unknown function of …
    CVE-2026-101101 (CVSS 5.3) — A vulnerability has been found in ag-ui-protocol ag-ui up to 2026-09-07. This issue affects the function JSON.…
    CVE-2026-101100 (CVSS 5.3) — A flaw has been found in ag-ui-protocol ag-ui up to 2026-09-07. This vulnerability affects the function Filter…
    CVE-2026-101099 (CVSS 5.3) — A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the fil…
    CVE-2026-101098 (CVSS 5.3) — A security vulnerability has been detected in ag-ui-protocol ag-ui up to 2026-09-23. Affected by this issue is…
    CVE-2026-92363 (CVSS 5.3) — A flaw has been found in ag-ui-protocol ag-ui 1.0. Affected is an unknown function of the file src/stream/sse_…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High