Medium severity · published Sep 16, 2026
CVE-2026-92363
ag-ui-protocol ag-ui JSON sse_parser.cpp resource consumption
4.3
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
ag-ui · ag-ui-protocol
1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92363
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92363
github.com
https://github.com/ag-ui-protocol/ag-ui/
github.com
https://github.com/ag-ui-protocol/ag-ui/commit/ab6e0bc298996caac2b4b0b3ec0bd8d32a15a186
github.com
https://github.com/ag-ui-protocol/ag-ui/issues/2440
github.com
https://github.com/ag-ui-protocol/ag-ui/pull/2501
vuldb.com
https://vuldb.com/cve/CVE-2026-92363
vuldb.com
https://vuldb.com/submit/934957
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