CVE-2026-92360

MEDIUM 6.3

ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-346 CWE-345
Vendor	ag-ui-protocol
Product	ag-ui
Published	Sep 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

ag-ui-protocol / ag-ui

1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/405446 vuldb.com: https://vuldb.com/vuln/405446/cti vuldb.com: https://vuldb.com/cve/CVE-2026-92360 vuldb.com: https://vuldb.com/submit/934950 github.com: https://github.com/ag-ui-protocol/ag-ui/issues/2437 github.com: https://github.com/ag-ui-protocol/ag-ui/pull/2701 github.com: https://github.com/ag-ui-protocol/ag-ui/

Credits

🔍 meraklbz (VulDB User) VulDB CNA Team