CVE-2026-44577Next.js: Denial of Service in the Image Optimization API
Updated under an hour ago ()
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It affects vercel next.js and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Modified
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
vercel next.js vercel:next.js (from the name) | from 10.0.0, < 15.5.16; from 16.0.0, < 16.2.5 | CNA record |
Red Hat Streams for Apache Kafka 2.9.4 redhat:amq_streams | 2.9 | CISA ADP |
Red Hat Red Hat Trusted Artifact Signer 1.3 redhat:trusted_artifact_signer | from 1783958622 not affected | CISA ADP |
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | 10 | CISA ADP |
Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3 redhat:enterprise_linux_ai | 3 | CISA ADP |
vercel next.js vercel:next.js | from 10.0.0 before 15.5.16; from 16.0.0 before 16.2.5 | NVD |
References
- https://github.com/vercel/next.js/security/advisories/GHSA-h64f-5h5j-jqjhx-refsource-confirm, mitigation, vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:34608
- https://access.redhat.com/errata/RHSA-2026:37272
- https://access.redhat.com/errata/RHSA-2026:40974
- https://access.redhat.com/errata/RHSA-2026:54435
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.