# io.netty:netty-codec-stomp (Maven) vulnerabilities

2 known vulnerabilities (1 high, 1 medium), 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: 1
- Releases: 188 since 4.1.0.Final (May 25, 2016)
- Registry: https://central.sonatype.com/artifact/io.netty/netty-codec-stomp
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-59920: 4.1.0.Beta1 to 4.1.135.Final (4.1.136.Final is outside it); 4.2.0.Final to 4.2.15.Final (4.2.16.Final is outside it)
- CVE-2026-44891: 4.1.0.Beta1 to 4.1.135.Final (4.1.136.Final is outside it); 4.2.0.Alpha1 to 4.2.15.Final (4.2.16.Final is outside it)

## Advisories (2)

### [CVE-2026-59920](https://cve.now/CVE-2026-59920): Netty: STOMP CONNECT Frame Header Injection

- Severity: Medium 6.5
- Published: Jul 29, 2026
- Affected: from 4.2.0.Final, fixed in 4.2.16.Final; fixed in 4.1.136.Final.
- Fixed in 4.1.136.Final (released Jul 8, 2026, 21 days before disclosure) and 4.2.16.Final (released Jul 7, 2026, 22 days before disclosure).
- The latest release, 4.2.20.Final, is not affected.

### [CVE-2026-44891](https://cve.now/CVE-2026-44891): Netty: Denial of Service via Unbounded Headers in StompSubframeDecoder

- Severity: High 7.5
- Published: Jul 17, 2026
- Affected: from 4.2.0.Alpha1, fixed in 4.2.16.Final; fixed in 4.1.136.Final.
- Fixed in 4.1.136.Final (released Jul 8, 2026, 9 days before disclosure) and 4.2.16.Final (released Jul 7, 2026, 10 days before disclosure).
- The latest release, 4.2.20.Final, is not affected.

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