CVE-2026-116542
MEDIUM
6,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
5,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
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.
176
Improper Handling of Unicode Encoding
DraftCommon Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Unexpected State
Applicable Platforms
All platforms may be affected
https://github.com/netty/netty-tcnative
https://github.com/netty/netty-tcnative/blob/netty-tcnative-parent-2.0.83.Final…
https://github.com/netty/netty-tcnative/commit/a879c85b9776cf478aada3ca69e60b8c…
https://github.com/netty/netty-tcnative/releases/tag/netty-tcnative-parent-2.0.…
https://github.com/netty/netty-tcnative/security/advisories/GHSA-2784-hxmm-4hgf
https://www.vulncheck.com/advisories/netty-netty-tcnative-before-2.0.84-final-s…