{"id":"CVE-2026-44577","title":"Next.js is a React framework for building full-stack web applications","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 memor…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770","CWE-770"],"vendor":"vercel","product":"next.js","affected":["next.js >= 10.0.0, < 15.5.16","next.js >= 16.0.0, < 16.2.5"],"patched":["next.js 16.2.5"],"published":"2026-05-13","updated":"2026-07-03","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44577","references":[{"url":"https://github.com/vercel/next.js/security/advisories/GHSA-h64f-5h5j-jqjh","label":"security-advisories@github.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:34608","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-44577","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2477194","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44577.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"tags":["nvd"],"epss":0.00739,"epssPercentile":0.53087,"ingestedAt":"2026-07-03T14:03:37.055Z","slug":"CVE-2026-44577","body":"## Overview\n\nNext.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.\n\n## Affected\n\n- `next.js >= 10.0.0, < 15.5.16`\n- `next.js >= 16.0.0, < 16.2.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `next.js 16.2.5`","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}