CVE-2026-92360 (GCVE-0-2026-92360)

Vulnerability from cvelistv5 – Published: 2026-09-16 12:30 – Updated: 2026-09-22 15:45
VLAI
Title
ag-ui-protocol ag-ui Event Application Layer agent.ts prepareRunAgentInput origin validation
Summary
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.
Severity
5.3 (Medium)
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/E:X
6.3 (Medium)
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
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 15:10 UTC
CWE
  • CWE-346 - Origin Validation Error
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3803 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ag-ui-protocol ag-ui Affected: 1.0
    cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
meraklbz (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.