vercel ai provider-utils response-handler.ts createJsonErrorResponseHandler resource consumption
Priority MEDIUM 57CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
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-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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00561 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed @ai-sdk/provider-utils (npm): 3.0.28, 4.0.33, 5.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| vercel | ai | 3.0.0; 3.0.1; 3.0.2; 3.0.3; 3.0.4; 3.0.5; 3.0.6; 3.0.7; 3.0.8; 3.0.9; 3.0.10; 3.0.11; 3.0.12; 3.0.13; 3.0.14; 3.0.15; 3.0.16; 3.0.17; 3.0.18; 3.0.19; 3.0.20; 3.0.21; 3.0.22; 3.0.23; 3.0.24; 3.0.25; 3.0.26; 3.0.27; 3.0.28; 3.0.29; 3.0.30; 3.0.31; 3.0.32; 3.0.33; 3.0.34; 3.0.35; 3.0.36; 3.0.37; 3.0.38; 3.0.39; 3.0.40; 3.0.41; 3.0.42; 3.0.43; 3.0.44; 3.0.45; 3.0.46; 3.0.47; 3.0.48; 3.0.49; 3.0.50; 3.0.51; 3.0.52; 3.0.53; 3.0.54; 3.0.55; 3.0.56; 3.0.57; 3.0.58; 3.0.59; 3.0.60; 3.0.61; 3.0.62; 3.0.63; 3.0.64; 3.0.65; 3.0.66; 3.0.67; 3.0.68; 3.0.69; 3.0.70; 3.0.71; 3.0.72; 3.0.73; 3.0.74; 3.0.75; 3.0.76; 3.0.77; 3.0.78; 3.0.79; 3.0.80; 3.0.81; 3.0.82; 3.0.83; 3.0.84; 3.0.85; 3.0.86; 3.0.87; 3.0.88; 3.0.89; 3.0.90; 3.0.91; 3.0.92; 3.0.93; 3.0.94; 3.0.95; 3.0.96; 3.0.97 | — | No fix listed | CNA |
| — | @ai-sdk/provider-utils (npm) | before 3.0.28 | 3.0.28 | Patch available | GHSA-866g-f22w-33x8 |
| — | @ai-sdk/provider-utils (npm) | 4.0.0-beta.10 to before 4.0.33 | 4.0.33 | Patch available | GHSA-866g-f22w-33x8 |
| — | @ai-sdk/provider-utils (npm) | 5.0.0-beta.0 to before 5.0.1 | 5.0.1 | Patch available | GHSA-866g-f22w-33x8 |
- ai Vendorvercel Affected 3.0.0; 3.0.1; 3.0.2; 3.0.3; 3.0.4; 3.0.5; 3.0.6; 3.0.7; 3.0.8; 3.0.9; 3.0.10; 3.0.11; 3.0.12; 3.0.13; 3.0.14; 3.0.15; 3.0.16; 3.0.17; 3.0.18; 3.0.19; 3.0.20; 3.0.21; 3.0.22; 3.0.23; 3.0.24; 3.0.25; 3.0.26; 3.0.27; 3.0.28; 3.0.29; 3.0.30; 3.0.31; 3.0.32; 3.0.33; 3.0.34; 3.0.35; 3.0.36; 3.0.37; 3.0.38; 3.0.39; 3.0.40; 3.0.41; 3.0.42; 3.0.43; 3.0.44; 3.0.45; 3.0.46; 3.0.47; 3.0.48; 3.0.49; 3.0.50; 3.0.51; 3.0.52; 3.0.53; 3.0.54; 3.0.55; 3.0.56; 3.0.57; 3.0.58; 3.0.59; 3.0.60; 3.0.61; 3.0.62; 3.0.63; 3.0.64; 3.0.65; 3.0.66; 3.0.67; 3.0.68; 3.0.69; 3.0.70; 3.0.71; 3.0.72; 3.0.73; 3.0.74; 3.0.75; 3.0.76; 3.0.77; 3.0.78; 3.0.79; 3.0.80; 3.0.81; 3.0.82; 3.0.83; 3.0.84; 3.0.85; 3.0.86; 3.0.87; 3.0.88; 3.0.89; 3.0.90; 3.0.91; 3.0.92; 3.0.93; 3.0.94; 3.0.95; 3.0.96; 3.0.97 Fixed in — No fix listed CNA
- @ai-sdk/provider-utils (npm) Vendor— Affected before 3.0.28 Fixed in 3.0.28 Patch available GHSA-866g-f22w-33x8
- @ai-sdk/provider-utils (npm) Vendor— Affected 4.0.0-beta.10 to before 4.0.33 Fixed in 4.0.33 Patch available GHSA-866g-f22w-33x8
- @ai-sdk/provider-utils (npm) Vendor— Affected 5.0.0-beta.0 to before 5.0.1 Fixed in 5.0.1 Patch available GHSA-866g-f22w-33x8
Remediation
- Fix · GHSA-866g-f22w-33x8 @ai-sdk/provider-utils (npm) Fixed in 3.0.28 Advisory →
- Fix · GHSA-866g-f22w-33x8 @ai-sdk/provider-utils (npm) Fixed in 4.0.33 Advisory →
- Fix · GHSA-866g-f22w-33x8 @ai-sdk/provider-utils (npm) Fixed in 5.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8769
- 2026-10-03 Alias added: GHSA-866g-f22w-33x8
- 2026-10-16 EPSS moved to the below the 50th percentile
References
Other 9
- https://github.com/vercel/ai/pull/16374
- https://github.com/vercel/ai/commit/6a436e31d247d678ddaedfc6f61e73ac0595e4b4
- https://github.com/vercel/ai/commit/b30e43ac3fae2432a40b4f4f27f844f3d78b119e
- https://github.com/vercel/ai/commit/b85c4fbc603b8173cf50a9790823397aada908a9
- https://github.com/vercel/ai
- https://github.com/vercel/ai/blob/main/packages/provider-utils/CHANGELOG.md#501
- https://github.com/vercel/ai/releases/tag/@ai-sdk/[email protected]
- https://github.com/vercel/ai/releases/tag/@ai-sdk/[email protected]
- https://github.com/vercel/ai/releases/tag/@ai-sdk/[email protected]
More vercel Ai vulnerabilities
- TI-2026-07706 vercel ai provider-utils download-blob.ts validateDownloadUrl server-side request forgery CVSS 4.0MEDIUM 6.9
- TI-2026-07705 vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection CVSS 4.0LOW 2.3
- TI-2025-31113 Improper input validation in vercel AI SDK CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-8769 · CVE Program
- CVE-2026-8769 · NVD
- FIRST EPSS
- GHSA-866g-f22w-33x8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences