CVE-2026-44577
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vercel | next.js | >= 10.0.0, < 15.5.16 | affected |
| vercel | next.js | >= 16.0.0, < 16.2.5 | affected |
Weaknesses
- CWE-770: CWE-770: Allocation of Resources Without Limits or Throttling
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
Next.js: Next.js: Denial of Service via Image Optimization API
Additional References
- https://access.redhat.com/security/cve/CVE-2026-44577
- https://bugzilla.redhat.com/show_bug.cgi?id=2477194
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44577.json
- https://access.redhat.com/errata/RHSA-2026:34608
References
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