CVE detail
CVE-2026-44573
Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, Applications using the Pages Router with i18n configured and middleware/proxy-based authorization can allow unauthorized access to protected page data through locale-less /_next/data/<buildId>/<page>.json requests. In affected configurations, middleware does not run for the unprefixed data route, allowing an attacker to retrieve SSR JSON for protected pages without passing the intended authorization checks. This vulnerability is fixed in 15.5.16 and 16.2.5.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 20.8 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
7 source links · newest first
- https://access.redhat.com/errata/RHSA-2026:40974access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 13, 2026, 5:16 PM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44573.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 13, 2026, 5:16 PM - https://bugzilla.redhat.com/show_bug.cgi?id=2477199bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 13, 2026, 5:16 PM - https://access.redhat.com/security/cve/CVE-2026-44573access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 13, 2026, 5:16 PM - https://access.redhat.com/errata/RHSA-2026:37272access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 13, 2026, 5:16 PM - https://access.redhat.com/errata/RHSA-2026:34608access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 13, 2026, 5:16 PM No excerpt available.
Exploitgithub.comMay 13, 2026, 5:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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