CVE-2026-101101

MEDIUM 4.3

ag-ui-protocol ag-ui Middleware convert.ts JSON.parse uncaught exception

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-248
Vendor	ag-ui-protocol
Product	ag-ui
Published	Sep 28, 2026
Last Updated	Sep 28, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

ag-ui-protocol / ag-ui

2026-09-07

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 meraklbz (VulDB User)