CVE-2026-94484
Reported by github_m · Published October 2, 2026
next is fixed in 16.3.8 and 15.5.27 (npm)
Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page and statically generated or Incremental Static Regeneration routes can use a shared response cache key that is insufficiently scoped to the source route. A single unauthenticated crafted request can poison that cache, causing cross-user content substitution or persistent denial of service until the poisoned entry is revalidated or replaced. This issue is fixed in versions 15.5.27 and 16.3.8.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| next | npm | 16.3.8, 15.5.27 |
| keep | Chainguard | 0.54.3-r8 |
| keep-fips | Chainguard | 0.54.3-r6 |
| langfuse-fips-4 | Chainguard | 4.49.0-r7 |
| next.js | vercel | 16.3.8, 15.5.27 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| vercel | next.js | >= 15.0.0, < 15.5.27, >= 16.0.0, < 16.3.8 |
| chainguard | keep | 0 |
| npm | next | 16.0.0, 15.0.0 |
| chainguard | keep-fips | 0 |
| chainguard | langfuse-fips-4 | 0 |
| vercel | next.js | 15.0.0, 16.0.0 |
| chainguard | zitadel-4 | 0 |
Timeline
- Oct 2, 2026 Coalition ESS Score
- Oct 2, 2026 CVE Published
- Oct 3, 2026 EPSS Score (8 in total, the first dated here)
- Oct 7, 2026 CVE Updated
- Oct 31, 2026 Security Advisory
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-94484
vulnetix vdb fixes CVE-2026-94484Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-94484/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p x_refsource_CONFIRM
- https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8 x_refsource_MISC
- https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52 x_refsource_MISC
- https://github.com/vercel/next.js/releases/tag/v15.5.27 x_refsource_MISC
- https://github.com/vercel/next.js/releases/tag/v16.3.8 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-94484 advisory
- https://github.com/advisories/GHSA-mcj8-r9mp-w47p advisory