ag-ui-protocol ag-ui up to 2026-09-07 Middleware legacy/convert.ts JSON.parse uncaught exception

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k2.01+

Summaryinfo

A vulnerability was found in ag-ui-protocol ag-ui up to 2026-09-07. It has been declared as problematic. Impacted is the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation results in uncaught exception. This vulnerability is identified as CVE-2026-101101. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in ag-ui-protocol ag-ui up to 2026-09-07. Affected is the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation with an unknown input leads to a uncaught exception vulnerability. CWE is classifying the issue as CWE-248. An exception is thrown from a function, but it is not caught. This is going to have an impact on availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-101101. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

Upgrading to version 2026-09-08 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 30f8c794d5b73df5c610153043db502b2cc106cc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uncaught exception
CWE: CWE-248
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: ag-ui 2026-09-08
Patch: 30f8c794d5b73df5c610153043db502b2cc106cc

Timelineinfo

09/08/2026 Countermeasure disclosed
09/28/2026 +20 days Advisory disclosed
09/28/2026 +0 days VulDB entry created
09/28/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 2444
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-101101 (🔒)
GCVE (CVE): GCVE-0-2026-101101
GCVE (VulDB): GCVE-100-410976

Entryinfo

Created: 09/28/2026 04:59
Changes: 09/28/2026 04:59 (61)
Complete: 🔍
Submitter: meraklbz
Cache ID: 216::103

Submitinfo

Accepted

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