En resumen
- CVE-2026-1002 es una vulnerabilidad MEDIO (CVSS 5.3) que afecta a io.vertx:vertx-core, vert.x-web (eclipse).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.38%, mayor que el 32.5% de las vulnerabilidades.
- Solución: actualizar a 5.0.7, 4.5.24 o posterior.
| Package | Affected versions | Patched versions |
|---|
| io.vertx:vertx-core Maven | ≥ 5.0.0.CR1, < 5.0.7< 4.5.24
| 5.0.74.5.24
|
| vert.x-web | ≥ 4.0.0, ≤ 4.5.23≥ 5.0.0, ≤ 5.0.6
| No fix yet |
Description
The Vert.x Web static handler component cache can be manipulated to deny the access to static files served by the handler using specifically crafted request URI.
The issue comes from an improper implementation of the C. rule of section 5.2.4 of RFC3986 and is fixed in Vert.x Core component (used by Vert.x Web): https://github.com/eclipse-vertx/vert.x/pull/5895
Steps to reproduce
Given a file served by the static handler, craft an URI that introduces a string like bar%2F..%2F after the last / char to deny the access to the URI with an HTTP 404 response. For example https://example.com/foo/index.html can be denied with https://example.com/foo/bar%2F..%2Findex.html
Mitgation
Disabling Static Handler cache fixes the issue.
StaticHandler staticHandler = StaticHandler.create().setCachingEnabled(false);
NVD description
The Vert.x Web static handler component cache can be manipulated to deny the access to static files served by the handler using specifically crafted request URI.
The issue comes from an improper implementation of the C. rule of section 5.2.4 of RFC3986 and is fixed in Vert.x Core component (used by Vert.x Web): https://github.com/eclipse-vertx/vert.x/pull/5895
Steps to reproduce
Given a file served by the static handler, craft an URI that introduces a string like bar%2F..%2F after the last / char to deny the access to the URI with an HTTP 404 response. For example https://example.com/foo/index.html can be denied with https://example.com/foo/bar%2F..%2Findex.html
Mitgation
Disabling Static Handler cache fixes the issue.
StaticHandler staticHandler = StaticHandler.create().setCachingEnabled(false);
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