{"id":"CVE-2026-8769","title":"A vulnerability was determined in vercel ai up to 3.0.97","summary":"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…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-400","CWE-404"],"vendor":"vercel","product":"ai","affected":["ai <= 3.0.97"],"patched":["@ai-sdk/provider-utils 3.0.28","@ai-sdk/provider-utils 4.0.33","@ai-sdk/provider-utils 5.0.1"],"published":"2026-05-17","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-8769","references":[{"url":"https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/811406","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/364394","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/364394/cti","label":"cna@vuldb.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8769"},{"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":["nvd","ghsa","npm"],"epss":0.00561,"epssPercentile":0.46456,"aliases":["GHSA-866g-f22w-33x8"],"ecosystem":"npm","ingestedAt":"2026-09-08T16:34:19.230Z","slug":"CVE-2026-8769","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `ai <= 3.0.97`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-8769)\n\nAffected 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\nPatched in:\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`\n\nSource: https://github.com/advisories/GHSA-866g-f22w-33x8","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":220475,"id":"CVE-2026-8769","ts":1792011259913,"field":"severity","old":"low","new":"medium"}]}