CVE-2026-92362 Details
Description
A vulnerability was detected in ag-ui-protocol ag-ui 1.0. This impacts an unknown function of the file crates/ag-ui-client/src/sse.rs of the component SSE Frame Parser. Performing a manipulation results in resource consumption. The attack is possible to be carried out remotely. The pull request to fix this issue awaits acceptance.
A denial-of-service vulnerability has been identified in the AG-UI protocol version 1.0, specifically within the SSE frame parser component. The issue arises from an unbounded buffering of incoming data, which can lead to memory exhaustion. This vulnerability is present in the Rust community SDK, particularly in the file 'crates/ag-ui-client/src/sse.rs'. The problem is exacerbated by the parser's failure to properly handle CRLF-terminated frames, allowing bytes from misbehaving or malicious endpoints to accumulate and potentially exhaust system resources.
A pull request has been submitted to address this vulnerability by capping the read buffer and properly dispatching CRLF-delimited SSE frames. This pull request is currently awaiting acceptance.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 16, 2026CISA-ADP
Assessed Sep 16, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/ag-ui-protocol/ag-ui/ | [email protected] | Vendor |
| https://github.com/ag-ui-protocol/ag-ui/issues/2439 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/ag-ui-protocol/ag-ui/pull/2500 | [email protected] | Issue TrackingVendor |
| https://vuldb.com/cve/CVE-2026-92362 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/934956 | [email protected] | Issue TrackingPermission Required |
| https://vuldb.com/vuln/405448 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/405448/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ag-ui-protocol ag-ui | 1.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2026 | New CVE Received | [email protected] |