{"id":"CVE-2026-8769","aliases":[],"url":"https://o3.security/vulnerability/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.","published":"2026-05-18T00:31:37Z","modified":"2026-09-08T16:30:06.120590930Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},"epss":{"score":0.00561,"percentile":0.43843,"asOf":"2026-08-14"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@ai-sdk/provider-utils","fixedVersion":"3.0.28"},{"ecosystem":"npm","name":"@ai-sdk/provider-utils","fixedVersion":"4.0.33"},{"ecosystem":"npm","name":"@ai-sdk/provider-utils","fixedVersion":"5.0.1"}],"fix":{"url":"https://github.com/vercel/ai/pull/16374","label":"vercel/ai#16374"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-08T16:30:06.120590930Z"}}