CVE-2026-92363 ag-ui-protocol ag-ui JSON sse_parser.cpp resource consumption
Remote attackers can cause resource consumption via a manipulated JSON payload in the ag-ui protocol library's 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-2026-92363?
CVE-2026-92363 is a medium-severity denial of service vulnerability in ag-ui-protocol ag-ui, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in ag-ui-protocol ag-ui 1.0. Affected is an unknown function of the file src/stream/sse_parser.cpp of the component JSON Parser. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. This patch is called ab6e0bc298996caac2b4b0b3ec0bd8d32a15a186. Applying a patch is advised to resolve this issue.
Which versions are affected by CVE-2026-92363?
How do I fix CVE-2026-92363?
No fix has been published for CVE-2026-92363 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-2026-92363 being exploited?
There is no known exploitation of CVE-2026-92363 in the wild and no public exploit code.
Sources
Also known as GHSA-gh4c-79cj-jr5j.