# io.netty:netty-transport-sctp (Maven) vulnerabilities

2 known vulnerabilities (2 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 4.2.20.Final (Nov 2, 2026): no advisory affects it
- Newest unaffected release: 4.2.20.Final (Nov 2, 2026), the latest release
- Dependents: 2
- Releases: 259 since 4.0.0.Final (Jul 15, 2013)
- Registry: https://central.sonatype.com/artifact/io.netty/netty-transport-sctp
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-59902: 4.0.0.Beta1 to 4.1.136.Final (4.1.137.Final is outside it); 4.2.0.Final to 4.2.16.Final (4.2.17.Final is outside it)
- CVE-2026-46340: 4.0.0.Beta1 to 4.1.134.Final (4.1.135.Final is outside it); 4.2.0.Final to 4.2.14.Final (4.2.15.Final is outside it)

## Advisories (2)

### [CVE-2026-59902](https://cve.now/CVE-2026-59902): Netty: Memory Exhaustion in SctpMessageCompletionHandler

- Severity: High 7.5
- Published: Aug 17, 2026
- Affected: from 4.2.0.Final, fixed in 4.2.17.Final; fixed in 4.1.137.Final.
- Fixed in 4.1.137.Final (released Aug 6, 2026, 11 days before disclosure) and 4.2.17.Final (released Aug 4, 2026, 13 days before disclosure).
- The latest release, 4.2.20.Final, is not affected.

### [CVE-2026-46340](https://cve.now/CVE-2026-46340): Netty: SCTP reassembly nests buffers without bound

- Severity: High 7.5
- Published: Jun 12, 2026
- Affected: from 4.2.0.Final, fixed in 4.2.15.Final; fixed in 4.1.135.Final.
- Fixed in 4.1.135.Final (released Jun 2, 2026, 10 days before disclosure) and 4.2.15.Final (released Jun 2, 2026, 10 days before disclosure).
- The latest release, 4.2.20.Final, is not affected.

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