CVE-2025-55173: Next.js Content Injection Vulnerability for Image Optimization

August 29, 2025

A vulnerability in Next.js Image Optimization has been fixed in v15.4.5 and v14.2.31. The issue allowed attacker-controlled external image sources to trigger file downloads with arbitrary content and filenames under specific configurations. This behavior could be abused for phishing or malicious file delivery.

All users relying on images.domains or images.remotePatterns are encouraged to upgrade and verify that external image sources are strictly validated.

More details at Vercel Changelog

References

github.com/advisories/GHSA-xv57-4mr9-wg8v
github.com/vercel/next.js
github.com/vercel/next.js/commit/6b12c60c61ee80cb0443ccd20de82ca9b4422ddd
github.com/vercel/next.js/security/advisories/GHSA-xv57-4mr9-wg8v
nvd.nist.gov/vuln/detail/CVE-2025-55173

Code Behaviors & Features

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