{"id":"CVE-2026-8769","aliases":["GHSA-866g-f22w-33x8"],"title":"@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue","summary":"@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue","severity":"low","cvss":4.3,"cwe":["CWE-400"],"vendor":"ai-sdk","product":"@ai-sdk/provider-utils","ecosystem":"npm","affected":["@ai-sdk/provider-utils < 3.0.28","@ai-sdk/provider-utils >= 4.0.0-beta.10, < 4.0.33","@ai-sdk/provider-utils >= 5.0.0-beta.0, < 5.0.1"],"patched":["@ai-sdk/provider-utils 3.0.28","@ai-sdk/provider-utils 4.0.33","@ai-sdk/provider-utils 5.0.1"],"published":"2026-05-18","updated":"2026-09-08","sourceUpdated":"2026-09-08T16:16:51Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-866g-f22w-33x8","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8769"},{"url":"https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb"},{"url":"https://vuldb.com/submit/811406"},{"url":"https://vuldb.com/vuln/364394"},{"url":"https://vuldb.com/vuln/364394/cti"},{"url":"https://github.com/vercel/ai/pull/16374"},{"url":"https://github.com/vercel/ai/commit/6a436e31d247d678ddaedfc6f61e73ac0595e4b4"},{"url":"https://github.com/vercel/ai/commit/b30e43ac3fae2432a40b4f4f27f844f3d78b119e"},{"url":"https://github.com/vercel/ai/commit/b85c4fbc603b8173cf50a9790823397aada908a9"},{"url":"https://github.com/vercel/ai/blob/main/packages/provider-utils/CHANGELOG.md#501"},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@3.0.28"},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@4.0.33"},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@5.0.1"},{"url":"https://github.com/advisories/GHSA-866g-f22w-33x8"}],"tags":["ghsa","npm"],"epss":0.00561,"epssPercentile":0.45191,"ingestedAt":"2026-09-08T16:34:19.230Z","slug":"CVE-2026-8769","body":"## Overview\n\nVersions 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.\n\n## Affected packages\n\n- `@ai-sdk/provider-utils < 3.0.28`\n- `@ai-sdk/provider-utils >= 4.0.0-beta.10, < 4.0.33`\n- `@ai-sdk/provider-utils >= 5.0.0-beta.0, < 5.0.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `@ai-sdk/provider-utils 3.0.28`\n- `@ai-sdk/provider-utils 4.0.33`\n- `@ai-sdk/provider-utils 5.0.1`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}