CVE-2026-8769 — A vulnerability was determined in vercel ai up to 3.0.97.

CVE-2026-8769 — A vulnerability was determined in vercel ai up to 3.0.97.

CVE-2026-8769 — 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 consu

What This Means For You

  • If your environment is affected by CWE-400, CWE-404, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-8769 updates and patches.

Related ATT&CK Techniques

🛡️ Detection Rules

2 rules · 6 SIEM formats

2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.

medium T1499 Impact

Medium - Resource Consumption via Vercel AI Response Handler - CVE-2026-8769

Sigma YAML — free preview
title: Medium - Resource Consumption via Vercel AI Response Handler - CVE-2026-8769
id: scw-2026-05-17-ai-1
status: experimental
level: medium
description: |
  Detects attempts to exploit CVE-2026-8769 by targeting the createJsonResponseHandler or createJsonErrorResponseHandler functions within the provider-utils package. This rule looks for specific URI paths and query parameters indicative of an attempt to trigger resource consumption by manipulating these functions in Vercel AI versions up to 3.0.97.
author: SCW Feed Engine (AI-generated)
date: 2026-05-17
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-8769/
tags:
  - attack.impact
  - attack.t1499
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/vercel/ai'
      cs-uri-query|contains:
          - 'packages/provider-utils/src/response-handler.ts'
  condition: selection
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse

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Indicators of Compromise

IDTypeIndicator
CVE-2026-8769 vulnerability CVE-2026-8769
CWE-400 weakness CWE-400
CWE-404 weakness CWE-404
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 18, 2026 at 02:17 UTC

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