False positive — Multiple Undertow CVEs reported but Undertow is not present in scanned artifact
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评估
调研方向
报告中未识别出任何仓库文件或测试。首先为 Java 应用复现一次 Xray 扫描并检查其依赖树；当不存在 io.undertow:undertow-core 时没有 Undertow CVE，同时 Jetty 仍能被正确识别，即表示完成。
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描述
Describe the bug
Xray reports 9 Undertow CVEs against our project. However, io.undertow:undertow-core is NOT present in our delivery at all. The project uses Eclipse Jetty (9.4.58) as its HTTP server via Apache Karaf's Pax Web integration. There is no Undertow dependency, no AJP listener, and no XNIO anywhere in the dependency chain.
The scanner appears to be making a broad or incorrect component association.
CVEs incorrectly reported:
| CVE | Severity | Vulnerability | Advisory |
|---|---|---|---|
| CVE-2023-1973 | HIGH | Undertow memory exhaustion DoS | https://bugzilla.redhat.com/show_bug.cgi?id=2185662 |
| CVE-2024-3884 | HIGH | Undertow FormEncodedDataDefinition OOM | https://bugzilla.redhat.com/show_bug.cgi?id=2275287 |
| CVE-2024-4027 | HIGH | Undertow getParameterNames() OOM | https://bugzilla.redhat.com/show_bug.cgi?id=2276410 |
| CVE-2024-5971 | HIGH | Undertow chunked response DoS | https://bugzilla.redhat.com/show_bug.cgi?id=2292211 |
| CVE-2024-6162 | HIGH | Undertow AJP listener path confusion | https://bugzilla.redhat.com/show_bug.cgi?id=2293069 |
| CVE-2024-7885 | HIGH | Undertow Proxy Protocol info leakage | https://bugzilla.redhat.com/show_bug.cgi?id=2305290 |
| CVE-2025-9784 | HIGH | Undertow MadeYouReset DoS | https://nvd.nist.gov/vuln/detail/CVE-2025-9784 |
| CVE-2025-12543 | CRITICAL | Undertow Host header validation bypass | https://nvd.nist.gov/vuln/detail/CVE-2025-12543 |
| CVE-2026-3260 | HIGH | Undertow multipart/form-data DoS | https://bugzilla.redhat.com/show_bug.cgi?id=2443010 |
| CVE-2026-28369 | CRITICAL | Undertow HTTP request smuggling | https://bugzilla.redhat.com/show_bug.cgi?id=2443262 |
To Reproduce
Xray scan a Java application that uses Eclipse Jetty (not Undertow) as its HTTP server. Scanner reports Undertow CVEs despite the artifact not containing any Undertow dependencies.
Expected behavior
These CVEs should not be reported when io.undertow:undertow-core is not present in the scanned artifact's dependency tree. The project uses a completely different HTTP server (Jetty via Pax Web).
Versions
- Package: io.undertow:undertow-core — NOT PRESENT
- HTTP server actually used: org.eclipse.jetty:jetty-server:9.4.58 (via Pax Web 8.0.35)
- Container: Apache Karaf (OSGi)
Additional context
Verified via source code search: zero references to Undertow, XNIO, or AJP listener in the entire project. The scanner may be confusing artifact metadata or making overly broad vendor-level associations.
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