ag-ui-protocol ag-ui 0.3.0 CORSMiddleware utils.py create_strands_app cross-domain policy

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k1.81+

Summaryinfo

A vulnerability was found in ag-ui-protocol ag-ui 0.3.0. It has been classified as problematic. The impacted element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. This manipulation causes cross-domain policy. This vulnerability is registered as CVE-2026-92359. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in ag-ui-protocol ag-ui 0.3.0 and classified as problematic. Affected by this vulnerability is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation with an unknown input leads to a cross-domain policy vulnerability. The CWE definition for the vulnerability is CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. As an impact it is known to affect confidentiality.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-92359. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version [email protected] eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 9b143b9668fa52c2054ede9d34a45ac4b4401089 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.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
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: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
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 [email protected]
Patch: 9b143b9668fa52c2054ede9d34a45ac4b4401089

Timelineinfo

09/16/2026 Advisory disclosed
09/16/2026 +0 days VulDB entry created
09/16/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 2433
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-92359 (🔒)
GCVE (CVE): GCVE-0-2026-92359
GCVE (VulDB): GCVE-100-405445

Entryinfo

Created: 09/16/2026 07:41
Changes: 09/16/2026 07:41 (60)
Complete: 🔍
Submitter: colorfullbz
Cache ID: 216::103

Submitinfo

Accepted

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