CVE-2026-64646
CVE-2026-64646: 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 severityHigh7.5
High [CVE-2026-64646] Denial of Service via excessive memory consumption in Server Actions
CVE-2026-64646Source published Source updated
Next.js is a React framework for building full-stack web applications. In versions 13.0.0 through 15.5.20 and 16.0.0 through 16.2.10, requests targeting Next.js applications using App Router with at least one Server Action can lead to excessive memory consumption if that Server Actions uses the Edge runtime. This issue has been fixed in versions 15.5.21 and 16.2.11. A flaw was found in Next.js. This can lead to a denial of service (DoS) due to resource exhaustion. An Important denial of service flaw exists in Next.js applications utilizing the App Router with Server Actions configured to use the Edge runtime. This vulnerability can lead to excessive memory consumption, potentially causing service unavailability. Red Hat products that embed or deploy Next.js applications with this…
- Affected products in this advisory
- Streams for Apache Kafka 3.2.1
- Red Hat Enterprise Linux AI (RHEL AI) 3
- streams for Apache Kafka 2
- Source-reported affected versions
- 13.0.0
- 15.5.20
- 16.0.0
- 16.2.10
- Source-reported fixed versions
- 15.5.21
- 16.2.11
- next
- RHSA-2026:54435
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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