Undici
CVE-2024-24758
MEDIUM
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. |
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Alert meAnalysisAI
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
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
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
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- 1 npm packages depend on undici (1 direct, 0 indirect)
Ecosystem-wide dependent count for version 6.0.0.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
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
undici is an HTTP/1.1 client, written from scratch for Node.js.`undici` is vulnerable to SSRF (Server-side Request Forge
Memory exhaustion denial of service in the undici WebSocket client (versions 6.17.0 and later) allows a malicious or com
Cross-user information disclosure in undici's cache interceptor allows authenticated users' responses to be served from
Cookie attribute injection in undici's setCookie function allows attacker-controlled domain values or unparsed array ent
Authorization headers are cleared on cross-origin redirect. Rated medium severity (CVSS 6.5), this vulnerability is remo
`Undici.ProxyAgent` never verifies the remote server's certificate, and always exposes all request & response data to th
CRLF injection in undici's HTTP/1.1 dispatcher enables HTTP header injection and potential request smuggling when applic
Undici is an HTTP/1.1 client for Node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable,
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` users are vulnerable to _CRLF Injection
Cross-user information disclosure and a parse-time denial of service in undici's HTTP cache interceptor affect versions
Certificate pinning and custom TLS identity checks can be silently bypassed in undici versions 4.0.0 through 6.29.0, 7.0
Persistent cache poisoning and disclosure of user-specific responses affect undici 7.0.0 through 7.30.0 and 8.0.0 throug
NVD
CVE.org
EPSS
GitHub
VulDB
Exploit-DB