A vulnerability has been found in ag-ui-protocol ag-ui up to 2026-09-07. This issue affects the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation leads to uncaught exception. Remote exploitation of the attack is possible. Upgrading to version 2026-09-08 is capable of addressing this issue. The identifier of the patch is 30f8c794d5b73df5c610153043db502b2cc106cc. Upgrading the affected component is recommended.

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.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
ag-ui-protocol ag-ui affected
Version Status Constraints
2026-09-07 affected —
2026-09-08 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/ag-ui-protocol/ag-ui/ cve-icon cve-icon
https://github.com/ag-ui-protocol/ag-ui/commit/30f8c794d5b73df5c610153043db502b2cc106cc cve-icon cve-icon
https://github.com/ag-ui-protocol/ag-ui/issues/2444 cve-icon cve-icon
https://github.com/ag-ui-protocol/ag-ui/pull/2493 cve-icon cve-icon
https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-09-08 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-101101 cve-icon cve-icon
https://vuldb.com/submit/934981 cve-icon cve-icon
https://vuldb.com/vuln/410976 cve-icon cve-icon
https://vuldb.com/vuln/410976/cti cve-icon cve-icon
History

Mon, 28 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 28 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
Description A vulnerability has been found in ag-ui-protocol ag-ui up to 2026-09-07. This issue affects the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation leads to uncaught exception. Remote exploitation of the attack is possible. Upgrading to version 2026-09-08 is capable of addressing this issue. The identifier of the patch is 30f8c794d5b73df5c610153043db502b2cc106cc. Upgrading the affected component is recommended.
Title ag-ui-protocol ag-ui Middleware convert.ts JSON.parse uncaught exception
First Time appeared Ag-ui-protocol
Ag-ui-protocol ag-ui
Weaknesses CWE-248
CPEs cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*
Vendors & Products Ag-ui-protocol
Ag-ui-protocol ag-ui
References
Metrics cvssV2_0

{'score': 4, 'vector': 'AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-28T18:13:33.954Z

Reserved: 2026-09-28T02:53:41.099Z

Link: CVE-2026-101101

cve-icon Vulnrichment

Updated: 2026-09-28T18:13:30.741Z

cve-icon NVD

Status : Received

Published: 2026-09-28T18:17:17.193

Modified: 2026-09-28T19:16:46.540

Link: CVE-2026-101101

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T20:30:06Z

Weaknesses