CVE-2026-45109Published
Next.js: Middleware / Proxy bypass in App Router applications via segment-prefetch routes
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-45109 · Microsoft / collected KEV context
cve-program · CVE-2026-45109
euvd · EUVD-2026-30085
nvd · CVE-2026-45109
- https://github.com/vercel/next.js/security/advisories/GHSA-26hh-7cqf-hhc6
- https://access.redhat.com/errata/RHSA-2026:34608
- https://access.redhat.com/errata/RHSA-2026:37272
- https://access.redhat.com/errata/RHSA-2026:40974
- https://access.redhat.com/errata/RHSA-2026:54435
- https://access.redhat.com/security/cve/CVE-2026-45109
- https://bugzilla.redhat.com/show_bug.cgi?id=2477190
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45109.json
osv · GHSA-26hh-7cqf-hhc6
- https://github.com/vercel/next.js/security/advisories/GHSA-267c-6grr-h53f
- https://github.com/vercel/next.js/security/advisories/GHSA-26hh-7cqf-hhc6
- https://nvd.nist.gov/vuln/detail/CVE-2026-45109
- https://github.com/vercel/next.js
- https://github.com/vercel/next.js/releases/tag/v15.5.18
- https://github.com/vercel/next.js/releases/tag/v16.2.6
Related operational evidence
Explicit CVE identifiersNo related operational record is retained in the current change model.