CVE-2026-28367
undertow: Undertow: Request smuggling via `\r\r\r` as a header block terminator
Severidad por fuente
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Descripción
A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending `\r\r\r` as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer, potentially leading to unauthorized access or manipulation of web requests.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| debian 14 | undertow | sin corrección indicada |
| maven::GitHub Security Advisory Maven | io.undertow:undertow-parent | sin corrección indicada |
| Red Hat | undertow-core | sin corrección indicada |
Referencias
- https://access.redhat.com/errata/RHSA-2026:25125
- https://access.redhat.com/errata/RHSA-2026:25126
- https://access.redhat.com/security/cve/CVE-2026-28367
- https://bugzilla.redhat.com/show_bug.cgi?id=2443260
- https://github.com/undertow-io/undertow
- https://nvd.nist.gov/vuln/detail/CVE-2026-28367
- https://www.cve.org/CVERecord?id=CVE-2026-28367