CVE-2026-64643
CVE-2026-64643: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.3
Medium [CVE-2026-64643] Information disclosure via Server Action ID exposure
CVE-2026-64643Source published Source updated
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, Next.js applications using App Router, Server Actions (use server) or use cache endpoints can be disclosed bypassing any authentication on the pages where these endpoints are usually used. Server Action IDs can be disclosed to unauthenticated users via publicly served client artifacts (for example, static chunks containing action references). By itself, this disclosure is typically a recon/enumeration primitive; however, it can increase risk when combined with other weaknesses. This issue has been fixed in versions 15.5.21 and 16.2.11. A flaw was found in Next.js. This bypasses authentication on pages where these endpoints are used, leading to information…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
6 more entries in the full advisory.
- Source-reported affected versions
- 12.0.0
- 15.5.20
- 16.0.0
- 16.2.10
- Source-reported fixed versions
- 15.5.21
- 16.2.11
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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