ag-ui-protocol ag-ui up to 0.0.58 SSE Parser sse.ts parseSSEStream resource consumption

Summaryinfo

A vulnerability was found in ag-ui-protocol ag-ui up to 0.0.58 and classified as problematic. Affected by this vulnerability is the function parseSSEStream of the file sdks/typescript/packages/client/src/transform/sse.ts of the component SSE Parser. The manipulation results in resource consumption. This vulnerability is cataloged as CVE-2026-120235. The attack may be launched remotely. Furthermore, there is an exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in ag-ui-protocol ag-ui up to 0.0.58. It has been classified as problematic. Affected is the function parseSSEStream of the file sdks/typescript/packages/client/src/transform/sse.ts of the component SSE Parser. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-120235. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The exploit is shared for download 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 9e7b2b00bce215bbf731f1e6094f63812527c432 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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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Submitinfo

Accepted

• Submit #1015147: ag-ui-protocol ag-ui <=0.0.58 CWE-400 (by ez-lbz)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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