GHSA-2xp9-vwfh-vxw4

Summary

Next.js: Unauthenticated Remote Code Execution in Image Optimization API when AVIF files are used

Severity

critical

CWE

CWE-1395

Published

2026-09-08

Updated

2026-09-08

Advisory details

A vulnerability in the underlying libheif library used by sharp which Next.js uses for image optimization can lead to remote code execution when AVIF files are optimized.

Until a fix has propagated, optimization of AVIF files is disabled.

References

• https://github.com/advisories/GHSA-2xp9-vwfh-vxw4
• https://github.com/strukturag/libheif/security/advisories/GHSA-g89c-p67h-r497
• https://github.com/vercel/next.js/security/advisories/GHSA-2xp9-vwfh-vxw4
• https://github.com/vercel/next.js/pull/97875
• https://github.com/vercel/next.js/pull/97931
• https://github.com/vercel/next.js/commit/3a15b4ac6ac8e70b1a9b18ecc18e8434462899b3
• https://github.com/vercel/next.js/commit/409772ec807def20132d251ad48fd8d8ad4c73c2
• https://github.com/vercel/next.js/commit/7a5937a8ab20b89d0a961f75eabb11577f5d5998

Related advisories

• CVE-2026-75604 — critical · npm/next
• CVE-2026-64649 — high · npm/next
• CVE-2026-64645 — high · npm/next
• CVE-2026-64642 — high · npm/next
• CVE-2026-64641 — high · npm/next
• CVE-2026-45109 — high · npm/next
• CVE-2026-44579 — high · npm/next
• CVE-2026-44578 — high · npm/next

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