Is io.undertow:undertow-core affected by CVE-2024-4027?

Maven io.undertow:undertow-core is affected in =2.4.0.Alpha1 =2.3.0.Alpha1 <2.3.21.Final.

Is CVE-2024-4027 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

high

CVE-2024-4027

Q: Is CVE-2024-4027 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.4%.

Maven · io.undertow:undertow-core

Summary

Undertow Servlets Vulnerable to Remote DoS via OutOfMemoryError when Passed Large Parameter Names

Severity: high
EPSS: 0.4% (p34)
Also known as: GHSA-33hj-rcmx-86mv
Published: 2026-01-30

References

Related advisories

CVE-2025-12543 — critical · Maven/io.undertow:undertow-core
CVE-2024-3884 — high · Maven/io.undertow:undertow-core
CVE-2025-9784 — high · Maven/io.undertow:undertow-core
CVE-2023-4639 — high · Maven/io.undertow:undertow-core
CVE-2024-7885 — high · Maven/io.undertow:undertow-core
CVE-2024-5971 — high · Maven/io.undertow:undertow-core
CVE-2024-6162 — high · Maven/io.undertow:undertow-core
CVE-2024-1635 — high · Maven/io.undertow:undertow-core

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.