{"id":"GHSA-866g-f22w-33x8","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.","aliases":["CVE-2026-8769"],"modified":"2026-09-08T16:30:06.120590930Z","published":"2026-05-18T00:31:37Z","database_specific":{"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-05-29T16:18:57Z","nvd_published_at":"2026-05-17T23:17:03Z","cwe_ids":["CWE-400"]},"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"}],"affected":[{"package":{"name":"@ai-sdk/provider-utils","ecosystem":"npm","purl":"pkg:npm/%40ai-sdk/provider-utils"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.0.28"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json"}},{"package":{"name":"@ai-sdk/provider-utils","ecosystem":"npm","purl":"pkg:npm/%40ai-sdk/provider-utils"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-beta.10"},{"fixed":"4.0.33"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json"}},{"package":{"name":"@ai-sdk/provider-utils","ecosystem":"npm","purl":"pkg:npm/%40ai-sdk/provider-utils"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0-beta.0"},{"fixed":"5.0.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-866g-f22w-33x8/GHSA-866g-f22w-33x8.json"}}],"schema_version":"1.9.0","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"}]}