How many CVEs does undici have?

undici has 19 published CVE records since 2026, including 19 in the last two years.

How many undici CVEs are in CISA KEV?

None of undici's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.

Which undici products have the most CVEs?

The undici products with the most published CVEs are undici.

What are the most common weakness types in undici CVEs?

undici's CVEs most often map to these CWE weakness types: CWE-93 (Improper Neutralization of CRLF Sequences ('CRLF Injection')), CWE-248 (Uncaught Exception), CWE-400 (Uncontrolled Resource Consumption), CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')).

Are there public exploits for undici vulnerabilities?

Yes — 1 of undici's CVEs have a known public exploit.

How many critical undici vulnerabilities are there?

undici has 2 critical and 8 high-severity CVEs.

What is the average severity of undici CVEs?

The average CVSS base score across undici's scored CVEs is 6.8.

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19 CVEs

undici Vulnerabilities

Name: undici vulnerability dataset (CVEs)
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

CVE security advisories and vulnerability history for undici.

19

Total CVEs

Published

0

In CISA KEV

Exploited in the wild

1

Public exploits

PoC or exploit code

6.8

Avg CVSS

2026–2026

Overview

undici has 19 published CVE records since 2026, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 1 have a known public exploit. The average CVSS base score across scored CVEs is 6.8.

This page aggregates every publicly disclosed vulnerability (CVE) affecting undici products, with severity breakdowns, the most-affected products, the most common weakness types, and the latest disclosures.

Security scorecard

A quick read on undici's vulnerability posture, as a share of its 19 published CVEs.

Average CVSS: 6.8
Critical / high: 53%
Actively exploited (KEV): 0%
Public exploit available: 5%
Patch available: 100%

Severity and exploitation

How the CVSS severity of undici's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.

Critical2

High8

Medium7

Low2

In CISA’s Known Exploited Vulnerabilities catalog

0

None of undici's CVEs are currently listed in CISA's KEV catalog.

Public exploits

1

One of undici's CVEs has a known public exploit available.

Most affected products

The undici products with the most published CVEs. Follow any product to browse its versions and vulnerabilities.

undici19 CVEs

Common weakness types

The CWE weakness categories most often found in undici CVEs. Follow any weakness for its full explanation.

CNAs that assign these CVEs

The CVE Numbering Authorities that publish undici CVE records.

openjs19 CVEs

Latest undici CVEs

The most recently disclosed vulnerabilities affecting undici.

undici vulnerable to CRLF Injection via blob-like body 'type' property
CWE-93
Medium · CVSS 5.4
EPSS 0.2%2026-07-29
undici vulnerable to cross-user information disclosure via whitespace around equals in Cache-Control directives
CWE-436
High · CVSS 7.5
EPSS 0.3%2026-07-29
undici vulnerable to downstream response desynchronization via retry interceptor
CWE-444
Medium · CVSS 6.5
EPSS 0.2%2026-07-29
undici vulnerable to cookie attribute injection via unsanitized domain and unparsed setCookie fields
CWE-74
Medium · CVSS 6.5
EPSS 0.2%2026-07-29
undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives
CWE-200
Critical · CVSS 9.1
EPSS 0.5%2026-07-29
undici vulnerable to Set-Cookie SameSite attribute downgrade via permissive substring matching
CWE-183
Low · CVSS 3.7
EPSS 0.2%2026-06-17
undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse
CWE-367
Low · CVSS 3.7
EPSS 0.2%2026-06-17
undici vulnerable to cross-user information disclosure via shared cache whitespace bypass
CWE-524
Medium · CVSS 5.9
EPSS 0.4%2026-06-17
undici vulnerable to HTTP header injection via Set-Cookie percent-decoding
CWE-93
Medium · CVSS 5.9
EPSS 0.3%2026-06-17
undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent
CWE-295
High · CVSS 7.4
EPSS 0.5%2026-06-17
undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse
CWE-346
High · CVSS 8.8
EPSS 0.3%2026-06-17
undici WebSocket client vulnerable to denial of service via cumulative fragment bypass
CWE-400
High · CVSS 7.5
EPSS 0.4%2026-06-17

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Frequently asked questions

Common questions about undici vulnerabilities.

How many CVEs does undici have?: undici has 19 published CVE records since 2026, including 19 in the last two years.
How many undici CVEs are in CISA KEV?: None of undici's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.
Which undici products have the most CVEs?: The undici products with the most published CVEs are undici.
What are the most common weakness types in undici CVEs?: undici's CVEs most often map to these CWE weakness types: CWE-93 (Improper Neutralization of CRLF Sequences ('CRLF Injection')), CWE-248 (Uncaught Exception), CWE-400 (Uncontrolled Resource Consumption), CWE-444 (Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')).
Are there public exploits for undici vulnerabilities?: Yes — 1 of undici's CVEs have a known public exploit.
How many critical undici vulnerabilities are there?: undici has 2 critical and 8 high-severity CVEs.
What is the average severity of undici CVEs?: The average CVSS base score across undici's scored CVEs is 6.8.

References

Vulnerability data is sourced from the CVE Program; severity, KEV, and exploit signals are aggregated by RadicalNotion.AI.

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