CVE-2026-92360

medium

Description

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.

References

https://vuldb.com/vuln/405446/cti

https://vuldb.com/vuln/405446

https://vuldb.com/submit/934950

https://vuldb.com/cve/CVE-2026-92360

https://github.com/ag-ui-protocol/ag-ui/pull/2701

https://github.com/ag-ui-protocol/ag-ui/issues/2437

https://github.com/ag-ui-protocol/ag-ui/

Details

Source: Mitre, NVD

Published: 2026-09-16

Updated: 2026-09-23

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00176