Vulnerability details
CVE-2026-94483
vercel next.js
Next.js: Server-Side Request Forgery in Image Optimization
CVSS 4.0
8.3High
Official description
Next.js is a React framework for building full-stack web applications. From 16.0.0 until 16.3.8, Image Optimization can follow attacker-controlled DNS resolution for a remote URL that matches images.remotePatterns, allowing the optimized image fetch to reach private IP addresses after the URL passes the allow-list check. Applications without images.remotePatterns are not affected. Administrators unable to upgrade should audit allow-listed hosts and avoid entries whose DNS records are not trusted. This issue is fixed in version 16.3.8.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.3High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| vercel | next.js | >= 16.0.0, < 16.3.8 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://github.com/vercel/next.js/security/advisories/GHSA-cjq9-62q9-8jv4 x_refsource_CONFIRM
- https://github.com/vercel/next.js/commit/e002ad68bd676bb0ed0c87bb22e3590304763e0b x_refsource_MISC
- https://github.com/vercel/next.js/releases/tag/v16.3.8 x_refsource_MISC
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Details
- Published
- 2026-10-02
- Last updated
- 2026-10-06
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.33%
Probability of exploitation in 30 days
26.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-918Server-Side Request Forgery (SSRF)