ag-ui-protocol ag-ui up to 0.0.58 Transport Decoder input validation

Summaryinfo

A vulnerability was found in ag-ui-protocol ag-ui up to 0.0.58. It has been classified as critical. Affected by this issue is some unknown functionality of the component Transport Decoder Handler. This manipulation causes input validation. This vulnerability is registered as CVE-2026-120236. Remote exploitation of the attack is possible. Furthermore, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in ag-ui-protocol ag-ui up to 0.0.58. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Transport Decoder Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-120236. The exploitation appears to be easy. The attack can be launched remotely. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 660182b973a44b8eda5484b14b88eb9cc251edc4 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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• ag-ui-protocol

Name

• ag-ui

Version

• 0.0.1
• 0.0.2
• 0.0.3
• 0.0.4
• 0.0.5
• 0.0.6
• 0.0.7
• 0.0.8
• 0.0.9
• 0.0.10
• 0.0.11
• 0.0.12
• 0.0.13
• 0.0.14
• 0.0.15
• 0.0.16
• 0.0.17
• 0.0.18
• 0.0.19
• 0.0.20
• 0.0.21
• 0.0.22
• 0.0.23
• 0.0.24
• 0.0.25
• 0.0.26
• 0.0.27
• 0.0.28
• 0.0.29
• 0.0.30
• 0.0.31
• 0.0.32
• 0.0.33
• 0.0.34
• 0.0.35
• 0.0.36
• 0.0.37
• 0.0.38
• 0.0.39
• 0.0.40
• 0.0.41
• 0.0.42
• 0.0.43
• 0.0.44
• 0.0.45
• 0.0.46
• 0.0.47
• 0.0.48
• 0.0.49
• 0.0.50
• 0.0.51
• 0.0.52
• 0.0.53
• 0.0.54
• 0.0.55
• 0.0.56
• 0.0.57
• 0.0.58

License

• open-source

Website

• Product: https://github.com/ag-ui-protocol/ag-ui/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

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Entryinfo

Submitinfo

Accepted

• Submit #1015178: ag-ui-protocol ag-ui <=0.0.58 CWE-20 (by ez-lbz)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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