Login Request a demo
Medium severity · published Sep 16, 2026
CVE-2026-92360
ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation
6.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
ag-ui · ag-ui-protocol
1.0 · source: vendor
Affected product
AG
ag-ui
ag-ui-protocol
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92360
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92360
github.com
https://github.com/ag-ui-protocol/ag-ui/
github.com
https://github.com/ag-ui-protocol/ag-ui/issues/2437
github.com
https://github.com/ag-ui-protocol/ag-ui/pull/2701
vuldb.com
https://vuldb.com/cve/CVE-2026-92360
vuldb.com
https://vuldb.com/submit/934950
vuldb.com
https://vuldb.com/vuln/405446
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