CVE-2024-47831Network attack vector

Service interruption via recursive image optimization

Published Oct 14, 2024 · Updated Oct 15, 2024

Uncontrolled recursion in Next.js 10.0.0 through 14.2.6 allows remote attackers to interrupt service through image optimization requests. The image optimizer's URL check rejects only strings beginning with /_next/image and therefore accepts encoded, absolute, or asset-prefixed URLs that recursively invoke the optimizer and consume CPU. Exposure requires self-hosting with the default image loader; Vercel-hosted applications and configurations that disable optimization or use a custom loader are unaffected.

CVSS severity5.9
Medium
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in Next.js 10.0.0 through 14.2.6 allows remote attackers to interrupt service through image optimization requests. The image optimizer's URL check rejects only strings beginning with /_next/image and therefore accepts encoded, absolute, or asset-prefixed URLs that recursively invoke the optimizer and consume CPU. Exposure requires self-hosting with the default image loader; Vercel-hosted applications and configurations that disable optimization or use a custom loader are unaffected.

The record

CVE
CVE-2024-47831
Published
Oct 14, 2024
Updated
Oct 15, 2024
Vendor
Vercel
Product
Next.js
Classifications
CWE-674, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 10.0.0, < 14.2.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vercel · Next.jsversion=>= 10.0.0, < 14.2.7

Published CVSS scores

5.9GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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