GCP-2026-055 — Published: 2026-08-25Description Description Severity Notes A critical unauthenticated Remote Code Execution (RCE) vulnerability exists in…

Published: 2026-08-25Description Description Severity Notes A critical unauthenticated Remote Code Execution (RCE) vulnerability exists in Next.js and libheif when processing malicious image files. Google Cloud infrastructure is not directly vulnerable, but customer workloads running Next.js on Google Cloud (e.g., Cloud Run, GKE, App Engine) may be affected. What should I do? Google Cloud backend services are not directly impacted, and no action is required to secure the underlying Google Cloud infrastructure. However, customers hosting Next.js applications on Google Cloud must take immediate action to secure their own workloads. We recommend that you manually upgrade your Next.js deployments to one of the following versions (or later) in your package.json:  16.3.3 15.5.24 Customers utilizing libheif should monitor for upstream OS patches and rebuild their container base images accordingly. Redeploy your updated workloads to ensure running containers utilize the patched versions. What vulnerabilities are being addressed? The vulnerabilities, GHSA-2xp9-vwfh-vxw4 and GHSA-g89c-p67h-r497, allow an attacker to execute arbitrary code within the context of the application by supplying a crafted image file during Next.js image optimization. This issue occurs due to how the underlying libheif library processes clean aperture boxes in HEIF/AVIF images. High GHSA-2xp9-vwfh-vxw4 GHSA-g89c-p67h-r497