CVE-2026-92363: ag-ui-protocol ag-ui JSON sse_parser.cpp resource consumption

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-16 · updated 2026-09-18
Weakness: CWE-400

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.

Affected products

ag-ui-protocol ag-ui: 1.0

References

https://github.com/ag-ui-protocol/ag-ui/
https://github.com/ag-ui-protocol/ag-ui/commit/ab6e0bc298996caac2b4b0b3ec0bd8d32a15a186
https://github.com/ag-ui-protocol/ag-ui/issues/2440
https://github.com/ag-ui-protocol/ag-ui/pull/2501
https://vuldb.com/cve/CVE-2026-92363
https://vuldb.com/submit/934957
https://vuldb.com/vuln/405449
https://vuldb.com/vuln/405449/cti

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