CVE-2026-75596
netty-tcnative: fragmented `ClientHello`records can trigger quadratic pre-handshake reassembly in default SNI parsing
CVE-2026-75596 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:4391-1, released September 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0037
31st percentile
fragmented `ClientHello`records can trigger quadratic pre-handshake reassembly in default SNI parsing
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| netty · sles 15.7 | 4.1.138-150200.4.56.1 | SUSE-SU-2026:4391-1 | Sep 29, 2026 |
| netty-tcnative · sles 15.6 | 2.0.84-150200.3.51.1 | SUSE-SU-2026:4391-1 | Sep 29, 2026 |
| netty-tcnative · sles 15.7 | 2.0.84-150200.3.51.1 | SUSE-SU-2026:4391-1 | Sep 29, 2026 |
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