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Undici CVE-2024-24758

MEDIUM
Information Exposure (CWE-200)
2024-02-16 security-advisories@github.com
4.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 4.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, user interaction required.

Exploit ScenarioDerived

A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.8% exploitation probability (EPSS)

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AnalysisAI

Undici is an HTTP/1.1 client, written from scratch for Node.js. Rated medium severity (CVSS 4.5), this vulnerability is remotely exploitable, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.

Affected Packages

npm undici fix: 5.28.3, 6.6.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Undici is an HTTP/1.1 client, written from scratch for Node.js. Undici already cleared Authorization headers on cross-origin redirects, but did not clear Proxy-Authentication headers. This issue has been patched in versions 5.28.3 and 6.6.1. Users are advised to upgrade. There are no known workarounds for this vulnerability. Affected products include: Nodejs Undici.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.5 MEDIUM
AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Undici is an HTTP/1.1 client, written from scratch for Node.js. Undici already cleared Authorization headers on cross-origin redirects, but did not clear Proxy-Authentication headers. This issue has been patched in versions 5.28.3 and 6.6.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 1 npm packages depend on undici (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 6.0.0.

Threat Intelligence Overview

EPSS Score
0.8%
Top 49% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.8%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

23
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*
cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*

More in Undici

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undici is an HTTP/1.1 client, written from scratch for Node.js.`undici` is vulnerable to SSRF (Server-side Request Forge

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7.5 Jun 17

Memory exhaustion denial of service in the undici WebSocket client (versions 6.17.0 and later) allows a malicious or com

CVE-2026-14643 HIGH POC
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Cross-user information disclosure in undici's cache interceptor allows authenticated users' responses to be served from

CVE-2026-16729 MEDIUM POC
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Cookie attribute injection in undici's setCookie function allows attacker-controlled domain values or unparsed array ent

CVE-2022-31151 MEDIUM POC
6.5 Jul 21

Authorization headers are cleared on cross-origin redirect. Rated medium severity (CVSS 6.5), this vulnerability is remo

CVE-2022-32210 MEDIUM POC
6.5 Jul 14

`Undici.ProxyAgent` never verifies the remote server's certificate, and always exposes all request & response data to th

CVE-2026-15157 MEDIUM POC
5.4 Jul 29

CRLF injection in undici's HTTP/1.1 dispatcher enables HTTP header injection and potential request smuggling when applic

CVE-2023-23936 MEDIUM POC
5.4 Feb 16

Undici is an HTTP/1.1 client for Node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable,

CVE-2022-35948 MEDIUM POC
5.3 Aug 15

undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` users are vulnerable to _CRLF Injection

CVE-2026-13697 CRITICAL
9.1 Jul 29

Cross-user information disclosure and a parse-time denial of service in undici's HTTP cache interceptor affect versions

CVE-2026-109383 CRITICAL POC
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Certificate pinning and custom TLS identity checks can be silently bypassed in undici versions 4.0.0 through 6.29.0, 7.0

CVE-2026-109829 CRITICAL POC
9.1 Oct 15

Persistent cache poisoning and disclosure of user-specific responses affect undici 7.0.0 through 7.30.0 and 8.0.0 throug

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