Exceptional Condition Vulnerability in ag-ui-protocol Kotlin Community SDK
CVE-2026-101099

5.3MEDIUM

Key Information:

Vendor

Ag-ui-protocol

Status
Ag-ui
Vendor
CVE Published:
28 September 2026

What is CVE-2026-101099?

A significant vulnerability has been identified in the ag-ui-protocol's Kotlin Community SDK, specifically within the SseParser.kt component. This flaw impacts the handling of exceptional conditions, presenting a potential risk for remote attackers to exploit. The vulnerability allows for manipulation that can lead to improper management of these conditions. A pull request is currently pending approval for a fix, highlighting the urgency of addressing this issue to enhance the security posture of affected users and systems.

Affected Version(s)

ag-ui 2026-09-23

References

https://vuldb.com/vuln/410974
vdb-entry
https://vuldb.com/vuln/410974/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-101099
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

meraklbz (VulDB User)
VulDB CNA Team
.