CVE-2026-8769

vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption

State: Published
Severity: 5.3 Medium
Published: May 17, 2026
Updated: May 18, 2026
Reserved: May 17, 2026

Description

A vulnerability was determined in vercel ai up to 3.0.97. The impacted element is the function createJsonResponseHandler/createJsonErrorResponseHandler of the file packages/provider-utils/src/response-handler.ts of the component provider-utils. This manipulation causes resource consumption. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R	VulDB
2.0	4.0 Medium	AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-400 Resource Consumption
CWE-404 Denial of Service

Affected Products

Product	Versions
aivercel	3.0.0Affected 3.0.1Affected 3.0.2Affected 3.0.3Affected 3.0.4Affected 3.0.5Affected 3.0.6Affected 3.0.7Affected 3.0.8Affected 3.0.9Affected 3.0.10Affected 3.0.11Affected 3.0.12Affected 3.0.13Affected 3.0.14Affected 3.0.15Affected 3.0.16Affected 3.0.17Affected 3.0.18Affected 3.0.19Affected 3.0.20Affected 3.0.21Affected 3.0.22Affected 3.0.23Affected 3.0.24Affected and 73 more versions

References

VDB-364394 | vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumptionvdb-entrytechnical-description
VDB-364394 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #811406 | vercel ai @ai-sdk/amazon-bedrock@3.0.97 Uncontrolled Resource Consumption (CWE-400)third-party-advisory
https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bbexploit

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