CVE-2026-116542
Last modified
CVE-2026-116542 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Netty netty-tcnative before 2.0.84.Final contains an SNI hostname spoofing vulnerability that allows remote unauthenticated clients to alter hostnames via JNI NewStringUTF decoding. Attackers can send overlong encodings like 0xC0 0x80 in the ClientHello server_name to confuse SNI-based certificate selection, access decisions, and logging..
Description
Netty netty-tcnative before 2.0.84.Final contains an SNI hostname spoofing vulnerability that allows remote unauthenticated clients to alter hostnames via JNI NewStringUTF decoding. Attackers can send overlong encodings like 0xC0 0x80 in the ClientHello server_name to confuse SNI-based certificate selection, access decisions, and logging.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| netty | netty-tcnative | < 2.0.84.Final |
| netty | netty-tcnative-boringssl-static | < 2.0.84.Final |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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