CVE-2026-120237: DoS (CVSS 4.3)

Description

A flaw has been found in ag-ui-protocol ag-ui up to 0.0.58. Affected by this issue is the function isInterruptExpired of the file sdks/typescript/packages/client/src/interrupts/index.ts of the component Interrupt expiry. This manipulation causes resource consumption. Remote exploitation of the attack is possible. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-404 CWE-404

References

Other References

https://github.com/ag-ui-protocol/ag-ui/ https://github.com/ag-ui-protocol/ag-ui/issues/2525 https://github.com/ag-ui-protocol/ag-ui/pull/3241 https://vuldb.com/cve/CVE-2026-120237 https://vuldb.com/submit/1015179 https://vuldb.com/vuln/429596 https://vuldb.com/vuln/429596/cti

Frequently Asked Questions

What is CVE-2026-120237? +

A flaw has been found in ag-ui-protocol ag-ui up to 0.0.58. Affected by this issue is the function isInterruptExpired of the file sdks/typescript/packages/client/src/interrupts/index.ts of the component Interrupt expiry. This manipulation causes resource consumption. Remote exploitation of the attack is possible. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-120237? +

CVE-2026-120237 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-120237? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-120237