CVE-2025-12543
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Błąd w serwerze HTTP Undertow pozwala na przetwarzanie złośliwych nagłówków Host, co może prowadzić do złośliwego przechwytywania sesji i ataków na…
CVSS
9.6
EPSS
1.3%
Exploit
none
Vendor
redhat
Opis źródłowy (NVD)
A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 9.6 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 1.3% |
| Opublikowano (NVD) | 2026-01-07 17:15:55 UTC |
| Ostatnia modyfikacja (NVD) | 2026-10-06 00:16:29 UTC |
Referencje
- https://access.redhat.com/errata/RHSA-2026:0383 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:0384 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:0386 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:33371 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:33372 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:3889 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:3890 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:3891 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:3892 ([email protected]) [Vendor Advisory]
- https://access.redhat.com/errata/RHSA-2026:4915 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:4916 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:4917 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:4924 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:76132 ([email protected])
- https://access.redhat.com/errata/RHSA-2026:76134 ([email protected])
- https://access.redhat.com/security/cve/CVE-2025-12543 ([email protected]) [Vendor Advisory]
- https://bugzilla.redhat.com/show_bug.cgi?id=2408784 ([email protected]) [Issue Tracking, Vendor Advisory]
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-12543.json (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)