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Advisory record · GHSA-2464-fhr4-w9xw

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

CVSS 4.0, no score published

Published by the GitHub Advisory Database at 22 Oct 2026, 15:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
nextnpm>=10.0.0, <15.5.28 || >=16.0.0, <16.4.115.5.28, 16.4.1
Identifiers
GHSA-2464-fhr4-w9xw
Weakness (CWE)
CWE-1395
Tags
Published
22 Oct 2026
Updated
22 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Next.js versions from 10.0.0 up to 15.5.28 and from 16.0.0 up to 16.4.1 are affected. A memory-related flaw in an upstream image library used by Image Optimization can allow remote code execution on glibc-based Linux; the title describes it as unauthenticated and involving SVG files, but the source gives few other details. Upgrade to Next.js 15.5.28 or 16.4.1, or make sure the sharp version used is at least 0.35.5.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
Not published None 4.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 13:33 UTC First seen by agentprime
  2. 31 Oct 2026, 13:33 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.