CVE-2026-56817
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Zagrożenie w Netty umożliwia atak XML External Entity przez niezabezpieczony `XmlDecoder`.
CVSS
9.8
EPSS
0.4%
Exploit
none
Vendor
netty
Opis źródłowy (NVD)
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
xxe
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 9.8 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.4% |
| Opublikowano (NVD) | 2026-07-21 23:17:52 UTC |
| Ostatnia modyfikacja (NVD) | 2026-07-30 14:48:18 UTC |
Referencje
- https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b (security-advisories@github.com) [Patch]
- https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 (security-advisories@github.com) [Patch]
- https://github.com/netty/netty/releases/tag/netty-4.1.136.Final (security-advisories@github.com) [Release Notes]
- https://github.com/netty/netty/releases/tag/netty-4.2.16.Final (security-advisories@github.com) [Release Notes]
- https://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx (security-advisories@github.com) [Vendor Advisory]