CVE-2026-120235
ag-ui-protocol ag-ui SSE Parser sse.ts parseSSEStream resource consumption
Published Nov 1, 2026
CVSS 4.0 · 5.3 Medium
EPSS < 1%
KEV · Not listed
Description
A security vulnerability has been detected in ag-ui-protocol ag-ui up to 0.0.58. Affected is the function parseSSEStream of the file sdks/typescript/packages/client/src/transform/sse.ts of the component SSE Parser. The manipulation leads to resource consumption. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 9e7b2b00bce215bbf731f1e6094f63812527c432. The affected component should be upgraded.
Affected Products
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CVE record
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NVD configurations
No data
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Red Hat packages
No data
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OpenCVE enrichment
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| ag-ui-protocol | ag-ui | affected |
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No data.
No data.
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| Ag-ui-protocol | Ag-ui |
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Remediation
Tracking
Advisories
Metrics
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Attack Requirements None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
User Interaction None
Attack Vector Network
Attack Complexity Low
Privileges Required Low
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
User Interaction None
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.354% probability within 30 days)
Exploitation poc
Automatable no
Technical Impact partial
References
History
Nov 2, 2026 6:30 PM
Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Nov 1, 2026 4:15 PM
Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A security vulnerability has been detected in ag-ui-protocol ag-ui up to 0.0.58. Affected is the function parseSSEStream of the file sdks/typescript/packages/client/src/transform/sse.ts of the component SSE Parser. The manipulation leads to resource consumption. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 9e7b2b00bce215bbf731f1e6094f63812527c432. The affected component should be upgraded. | |
| Title | ag-ui-protocol ag-ui SSE Parser sse.ts parseSSEStream resource consumption | |
| First Time appeared |
Ag-ui-protocol
Ag-ui-protocol ag-ui |
|
| Weaknesses | CWE-400 CWE-404 |
|
| CPEs | cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ag-ui-protocol
Ag-ui-protocol ag-ui |
|
| References |
|
|
| Metrics |
cvssV2_0
|
