Linux · 
Ubuntu · Package update · May 13, 2026
Ubuntu · Package update · May 13, 2026libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2: libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2 for Ubuntu 26.04.1 LTS (resolute)
libnetty-buffer-java 1:4.1.48-16ubuntu0.1~esm2, released May 13, 2026, fixes 6 CVEs in libnetty-buffer-java. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0107
65th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 4
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libnetty-buffer-java | Ubuntu 26.04.1 LTS (resolute) | 1:4.1.48-16ubuntu0.1~esm2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-42578 | netty-tcnative: HTTP Header Injection via HttpProxyHandler Disabled Validation in Netty (bsc#1265243). | 7.5 | 0.0107 | None reported |
| High | CVE-2026-42579 | netty-tcnative: DNS codec does not enforce RFC 1035 domain name constraints during either encoding or decoding | 7.5 | 0.0101 | None reported |
| High | CVE-2026-42584 | netty-tcnative: improper handling of inbound responses in `HttpClientCodec` can lead to response desynchronization | 7.3 | 0.0084 | None reported |
| High | CVE-2026-42581 | netty-tcnative: TE+CL header coexistence in HTTP/1.0 requests bypasses smuggling sanitization (bsc#1265277). | 7.2 | 0.0063 | None reported |
| Routine | CVE-2026-42585 | netty-tcnative: Netty is an asynchronous, event-driven network application framework (bsc#1265292). | 6.5 | 0.0027 | None reported |
| Routine | CVE-2026-42586 | netty-tcnative: CRLF Injection in Netty Redis Codec Encoder (bsc#1265245). | n/a | 0.0022 | None reported |
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