CVE-2026-101099 ag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional condition
Remote attackers can cause denial of service in the ag-ui Kotlin Community SDK by triggering exceptional conditions in the SSE parser.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-101099?
CVE-2026-101099 is a medium-severity denial of service vulnerability in ag-ui-protocol ag-ui, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.
Weakness: CWE-755
Which versions are affected by CVE-2026-101099?
How do I fix CVE-2026-101099?
No fix has been published for CVE-2026-101099 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-101099 being exploited?
There is no known exploitation of CVE-2026-101099 in the wild and no public exploit code.
Sources
Also known as GHSA-pcr3-24cw-387c.