CVE-2026-8769: @ai sdk/provider utils Remote Code Execution Vulnerability
LOWCVE-2026-8769 is a LOW (CVSS 4.3) remote code execution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting @ai sdk/provider utils libraries in the npm ecosystem. The issue involves @ai-sdk/provider-utils has an uncontrolled resource consumption issue. Remediation is available by upgrading affected packages to version 3.0.28, 4.0.33, 5.0.1.
CVE-2026-8769 at a Glance
Security Impact
CVSS: 4.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
How to Fix CVE-2026-8769
To remediate this vulnerability, upgrade all affected @ai sdk/provider utils dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install @ai-sdk/provider-utils@3.0.28npm install @ai-sdk/provider-utils@4.0.33npm install @ai-sdk/provider-utils@5.0.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls @ai-sdk/provider-utilsHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2026-8769, inspect your project dependencies using npm:
npm ls @ai-sdk/provider-utilsAnalyze the terminal output to locate any version of @ai sdk/provider utils in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.0.28), your application is affected.
Note: The npm ls @ai-sdk/provider-utils command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In @ai sdk/provider utils, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-8769 Affected @ai sdk/provider utils Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
@ai-sdk/provider-utils
|
npm |
< 3.0.28
|
3.0.28
|
|
@ai-sdk/provider-utils
|
npm |
≥ 4.0.0-beta.10
< 4.0.33
|
4.0.33
|
|
@ai-sdk/provider-utils
|
npm |
≥ 5.0.0-beta.0
< 5.0.1
|
5.0.1
|
References
Frequently Asked Questions
What is CVE-2026-8769?
Which @ai sdk/provider utils versions are affected?
What version fixes CVE-2026-8769?
Is @ai-sdk/provider-utils affected?
What is the CVSS score of CVE-2026-8769?
What CWE is associated with CVE-2026-8769?
How can I check npm dependencies for CVE-2026-8769?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-866g-f22w-33x8",
"modified" : "2026-09-08T16:16:50Z",
"published" : "2026-05-18T00:31:37Z",
"aliases" : [ "CVE-2026-8769" ],
"summary" : "@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue",
"details" : "Versions of `@ai-sdk/provider-utils` before 3.0.28, from 4.0.0 before 4.0.33, and from 5.0.0 before 5.0.1 are vulnerable to uncontrolled resource consumption. The `createJsonResponseHandler`, `createJsonErrorResponseHandler`, and `createStatusCodeErrorResponseHandler` functions in `packages/provider-utils/src/response-handler.ts` read response bodies without a shared size limit, allowing a remote attacker with low privileges to cause excessive memory consumption. The exploit has been publicly disclosed and may be utilized.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
}, {
"type" : "CVSS_V4",
"score" : "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"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "@ai-sdk/provider-utils"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "3.0.28"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "@ai-sdk/provider-utils"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "4.0.0-beta.10"
}, {
"fixed" : "4.0.33"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "@ai-sdk/provider-utils"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "5.0.0-beta.0"
}, {
"fixed" : "5.0.1"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-8769"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/pull/16374"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/commit/6a436e31d247d678ddaedfc6f61e73ac0595e4b4"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/commit/b30e43ac3fae2432a40b4f4f27f844f3d78b119e"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/commit/b85c4fbc603b8173cf50a9790823397aada908a9"
}, {
"type" : "WEB",
"url" : "https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/vercel/ai"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/blob/main/packages/provider-utils/CHANGELOG.md#501"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@3.0.28"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@4.0.33"
}, {
"type" : "WEB",
"url" : "https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@5.0.1"
}, {
"type" : "WEB",
"url" : "https://vuldb.com/submit/811406"
}, {
"type" : "WEB",
"url" : "https://vuldb.com/vuln/364394"
}, {
"type" : "WEB",
"url" : "https://vuldb.com/vuln/364394/cti"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-400" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2026-05-29T16:18:57Z",
"nvd_published_at" : "2026-05-17T23:17:03Z"
}
}