{"id":"CVE-2026-8769","aliases":["CLSA-2026-1789472298","CLSA-2026-1792161536","CLSA-2026-1793270505","CLSA-2026-1793271692","CLSA-2026-1793272798","CLSA-2026-1793276296","EUVD-2026-30712","GHSA-866g-f22w-33x8"],"status":"published","title":"vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption","description":"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-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.","severity":{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00561,"percentile":0.46921,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-404"],"published":"2026-05-17T23:00:13Z","modified":"2026-10-29T13:45:04Z","fixes":[{"ecosystem":"npm","package":"@ai-sdk/provider-utils","fixed_in":["3.0.28","4.0.33","5.0.1"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"@ai-sdk/provider-utils","fixed_in":["3.0.27-tuxcare.1","2.2.8-tuxcare.2","4.0.27-tuxcare.1"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"ai","fixed_in":["2.2.8-tuxcare.1"],"sources":["osv"]},{"ecosystem":"TuxCare:npm","package":"@ai-sdk/openai","fixed_in":["4.0.27-tuxcare.2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.28"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0-beta.10"},{"fixed":"4.0.33"}]}]},{"source":"ghsa","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0-beta.0"},{"fixed":"5.0.1"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.27-tuxcare.0"},{"fixed":"3.0.27-tuxcare.1"}]}],"versions":["3.0.27"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"ai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.2.8-tuxcare.0"},{"fixed":"2.2.8-tuxcare.1"}]}],"versions":["2.2.8"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.2.8-tuxcare.0"},{"fixed":"2.2.8-tuxcare.2"}]}],"versions":["2.2.8"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.27-tuxcare.0"},{"fixed":"4.0.27-tuxcare.1"}]}],"versions":["4.0.27"]},{"source":"osv","ecosystem":"TuxCare:npm","package":"@ai-sdk/openai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.27-tuxcare.0"},{"fixed":"4.0.27-tuxcare.2"}]}],"versions":["4.0.27"]},{"source":"osv","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.0.28"}]}]},{"source":"osv","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0-beta.10"},{"fixed":"4.0.33"}]}]},{"source":"osv","ecosystem":"npm","package":"@ai-sdk/provider-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0-beta.0"},{"fixed":"5.0.1"}]}]}],"products":[{"vendor":"vercel","product":"ai"}],"references":[{"url":"https://vuldb.com/vuln/364394","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry","web"]},{"url":"https://vuldb.com/vuln/364394/cti","tags":["signature","permissions-required","Permissions Required","VDB Entry","web"]},{"url":"https://vuldb.com/submit/811406","tags":["third-party-advisory","Third Party Advisory","VDB Entry","web"]},{"url":"https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb","tags":["exploit","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8769","tags":["advisory"]},{"url":"https://github.com/vercel/ai/pull/16374","tags":["web"]},{"url":"https://github.com/vercel/ai/commit/6a436e31d247d678ddaedfc6f61e73ac0595e4b4","tags":["web"]},{"url":"https://github.com/vercel/ai/commit/b30e43ac3fae2432a40b4f4f27f844f3d78b119e","tags":["web"]},{"url":"https://github.com/vercel/ai/commit/b85c4fbc603b8173cf50a9790823397aada908a9","tags":["web"]},{"url":"https://github.com/vercel/ai/blob/main/packages/provider-utils/CHANGELOG.md#501","tags":["web"]},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@3.0.28","tags":["web"]},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@4.0.33","tags":["web"]},{"url":"https://github.com/vercel/ai/releases/tag/@ai-sdk/provider-utils@5.0.1","tags":["web"]},{"url":"https://github.com/advisories/GHSA-866g-f22w-33x8"},{"url":"https://github.com/vercel/ai","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-8769","title":"vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption","description":"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-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.","status":"published","published":"2026-05-17T23:00:13.988Z","modified":"2026-05-18T20:13:40.558Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","level":"medium","assessor":"cna"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-400","CWE-404"],"updated_at":"2026-11-02T13:48:13.398044Z"}],"euvd":[{"id":"EUVD-2026-30712","description":"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-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.","status":"published","published":"2026-05-17T23:00:13Z","modified":"2026-05-18T20:13:40Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T18:21:15.688012Z"}],"ghsa":[{"id":"GHSA-866g-f22w-33x8","title":"@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue","description":"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.","status":"published","published":"2026-05-18T00:31:37Z","modified":"2026-09-08T16:16:51Z","cvss":[{"version":"4.0","score":2.1,"vector":"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","level":"low"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:41:13.477974Z"}],"nvd":[{"id":"CVE-2026-8769","description":"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-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.","status":"published","published":"2026-05-17T23:17:03.18Z","modified":"2026-10-14T20:10:00.19Z","cvss":[{"version":"4.0","score":2.1,"vector":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-400","CWE-404"],"updated_at":"2026-11-02T14:12:19.39893Z"}],"osv":[{"id":"GHSA-866g-f22w-33x8","title":"@ai-sdk/provider-utils has an Uncontrolled Resource Consumption issue","description":"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.","status":"published","published":"2026-05-18T00:31:37Z","modified":"2026-09-08T16:30:06.12059093Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"4.0","score":2.1,"vector":"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","level":"low"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:41.732368Z"},{"id":"CLSA-2026-1789472298","title":"TuxCare security update for @ai-sdk/provider-utils (1 CVE)","description":"TuxCare rebuilt @ai-sdk/provider-utils to address 1 CVE. Fixed in 3.0.27-tuxcare.1.","status":"withdrawn","published":"2026-09-15T11:38:18Z","modified":"2026-10-26T13:21:31Z","updated_at":"2026-11-02T15:43:47.938828Z"},{"id":"CLSA-2026-1792161536","title":"TuxCare security update for @ai-sdk/provider-utils (1 CVE)","description":"TuxCare rebuilt @ai-sdk/provider-utils to address 1 CVE. Fixed in 3.0.27-tuxcare.1.","status":"published","published":"2026-10-16T14:38:56Z","modified":"2026-10-16T16:30:09.025303508Z","updated_at":"2026-11-02T15:43:51.213191Z"},{"id":"CLSA-2026-1793270505","title":"TuxCare security update for ai (1 CVE)","description":"TuxCare rebuilt ai to address 1 CVE. Fixed in 2.2.8-tuxcare.1.","status":"published","published":"2026-10-29T10:41:45Z","modified":"2026-10-29T13:45:04.241929529Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"CLSA-2026-1793271692","title":"TuxCare security update for @ai-sdk/provider-utils (1 CVE)","description":"TuxCare rebuilt @ai-sdk/provider-utils to address 1 CVE. Fixed in 2.2.8-tuxcare.2.","status":"published","published":"2026-10-29T11:01:32Z","modified":"2026-10-29T13:45:03.326441056Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"CLSA-2026-1793272798","title":"TuxCare security update for @ai-sdk/provider-utils (1 CVE)","description":"TuxCare rebuilt @ai-sdk/provider-utils to address 1 CVE. Fixed in 4.0.27-tuxcare.1.","status":"published","published":"2026-10-29T11:19:58Z","modified":"2026-10-29T13:45:03.879973611Z","updated_at":"2026-11-02T15:43:55.669514Z"},{"id":"CLSA-2026-1793276296","title":"TuxCare security update for @ai-sdk/openai (1 CVE)","description":"TuxCare rebuilt @ai-sdk/openai to address 1 CVE. Fixed in 4.0.27-tuxcare.2.","status":"published","published":"2026-10-29T12:18:16Z","modified":"2026-10-29T13:45:02.578776554Z","updated_at":"2026-11-02T15:43:55.669514Z"}]}}