CVE-2024-30261Network attack vector

Integrity-check bypass via empty hash metadata

Published Apr 4, 2024 · Updated Nov 4, 2025

Integrity verification bypass in Node.js Undici before 5.28.4 and 6.0.0 through 6.11.0 allows remote authenticated users to accept tampered data. The fetch integrity parser discards metadata that names a supported algorithm without a valid hash, then treats the resulting empty metadata set as a successful match. Exploitation requires control of the integrity option and user interaction, and the bounded consequence is acceptance of modified response content.

CVSS severity2.6
Low
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integrity verification bypass in Node.js Undici before 5.28.4 and 6.0.0 through 6.11.0 allows remote authenticated users to accept tampered data. The fetch integrity parser discards metadata that names a supported algorithm without a valid hash, then treats the resulting empty metadata set as a successful match. Exploitation requires control of the integrity option and user interaction, and the bounded consequence is acceptance of modified response content.

The record

CVE
CVE-2024-30261
Published
Apr 4, 2024
Updated
Nov 4, 2025
Vendor
Node.js
Product
Undici
Classifications
CWE-657
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record 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=0 <5.28.4
  2. Affected versionversion=< 5.28.4
  3. Affected versionversion=>= 6.0.0, < 6.11.1
  4. Affected versionversion=6.0.0 <6.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Node.js · Undiciversion=0 <5.28.4; version=< 5.28.4; version=>= 6.0.0, < 6.11.1; version=6.0.0 <6.11.1

Published CVSS scores

2.6GitHubCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-657Violation of Secure Design Principles

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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