Bug 2477194 (CVE-2026-44577)

Summary: CVE-2026-44577 Next.js: Next.js: Denial of Service via Image Optimization API
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: bbrownin, chfoley, eborisov, gotiwari, jgrulich, jhorak, kaycoth, lball, mvyas, ngough, rgodfrey, rhel-process-autobot, swoodman, tpopela, veshanka, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Next.js. When self-hosting Next.js with the default image loader, the Image Optimization API fetches local images entirely into memory without enforcing a maximum size limit. A remote attacker could exploit this by requesting large local assets from the /_next/image endpoint. This can lead to out-of-memory conditions, resulting in a Denial of Service (DoS) for the application.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2484229, 2484233, 2484261, 2484227, 2484232, 2484234, 2484236    
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Description OSIDB Bzimport 2026-05-13 18:01:58 UTC 
Next.js is a React framework for building full-stack web applications. From 10.0.0 to before 15.5.16 and 16.2.5, when self-hosting Next.js with the default image loader, the Image Optimization API fetches local images entirely into memory without enforcing a maximum size limit. An attacker could cause out-of-memory conditions by requesting large local assets from the /_next/image endpoint that match the images.localPatterns configuration (by default, all patterns are allowed). This vulnerability is fixed in 15.5.16 and 16.2.5.
Comment 2 errata-xmlrpc 2026-07-02 00:04:54 UTC 
This issue has been addressed in the following products:

  Streams for Apache Kafka 2.9.4

Via RHSA-2026:34608 https://access.redhat.com/errata/RHSA-2026:34608