CVE catalog
CVE-2026-44891
Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.stomp.StompSubframeDecoder fails to limit the
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.73% · Oct 25, 2026
Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.stomp.StompSubframeDecoder fails to limit the total number of headers or their cumulative size per frame, and the maxLineLength parameter only restricts individual header lines. An attacker can send a large number of short headers that are accumulated in memory inside DefaultStompHeadersSubframe until the JVM throws an OutOfMemoryError, causing denial of service for servers exposing a STOMP endpoint based on StompSubframeDecoder. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | netty | sid | 1:4.1.48-16 | vulnerable |
| Debian | netty | forky | 1:4.1.48-16 | vulnerable |
| Debian | netty | trixie | 1:4.1.48-10+deb13u1 | vulnerable |
| Debian | netty | trixie-security | 1:4.1.48-10+deb13u1 | vulnerable |
| Debian | netty | bookworm | 1:4.1.48-7+deb12u2 | vulnerable |
| Debian | netty | bookworm-security | 1:4.1.48-7+deb12u2 | vulnerable |
| Maven | io.netty:netty-codec-stomp | Not reported | 4.2.16.Final | fixed |
| Maven | io.netty:netty-codec-stomp | Not reported | 4.1.136.Final | fixed |
| Cpe | netty | Not reported | Not reported | vulnerable |
| Suse | netty-tcnative | linux enterprise module for development tools 15 sp7 | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty | linux enterprise module for package hub 15 sp7 | 4.1.136-150200.4.53.1 | fixed |
| Suse | netty-tcnative | linux enterprise high performance computing 15 sp4-espos | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise high performance computing 15 sp4-ltss | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise high performance computing 15 sp5-espos | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise high performance computing 15 sp5-ltss | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server 15 sp4-ltss | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server 15 sp5-ltss | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server 15 sp6-ltss | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server for sap applications 15 sp4 | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server for sap applications 15 sp5 | 2.0.80-150200.3.48.1 | fixed |
| Suse | netty-tcnative | linux enterprise server for sap applications 15 sp6 | 2.0.80-150200.3.48.1 | fixed |
| Opensuse | netty | tumbleweed | 4.1.136-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | netty | source | sid | (unfixed) | not yet assigned | Not reported | [1142680] |
| Debian | netty | source | forky | (unfixed) | not yet assigned | Not reported | [1142680] |
| Debian | netty | source | trixie | (unfixed) | not yet assigned | Not reported | [1142680] |
| Debian | netty | source | bookworm | (unfixed) | not yet assigned | Not reported | [1142680] |
| Maven | io.netty:netty-codec-stomp | maven | Not reported | 4.2.16.Final | Not reported | Not reported | Not reported |
| Maven | io.netty:netty-codec-stomp | maven | Not reported | 4.1.136.Final | Not reported | Not reported | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise module for development tools 15 sp7 | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty | rpm | linux enterprise module for package hub 15 sp7 | 4.1.136-150200.4.53.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise high performance computing 15 sp4-espos | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise high performance computing 15 sp4-ltss | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise high performance computing 15 sp5-espos | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise high performance computing 15 sp5-ltss | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server 15 sp4-ltss | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server 15 sp5-ltss | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server 15 sp6-ltss | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server for sap applications 15 sp4 | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server for sap applications 15 sp5 | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Suse | netty-tcnative | rpm | linux enterprise server for sap applications 15 sp6 | 2.0.80-150200.3.48.1 | Not reported | SUSE-SU-2026:3482-1 | Not reported |
| Opensuse | netty | rpm | tumbleweed | 4.1.136-1.1 | Not reported | OPENSUSE-SU-2026:11394-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnetty-java]Affected
Source package: [netty]
Details (4)
1:4.1.48-7+deb12u2· all · bookwormAffected
nvd · netty · debian · bookworm; nvd · netty · debian · 12
1:4.1.48-7+deb12u2· all · bookwormAffected
nvd · netty · debian · bookworm; nvd · netty · debian · 12
1:4.1.48-7+deb12u2· all · bookworm-securityAffected
nvd · netty · debian · bookworm; nvd · netty · debian · 12
1:4.1.48-7+deb12u2· all · bookworm-securityAffected
nvd · netty · debian · bookworm; nvd · netty · debian · 12
[Debian 13 (Trixie)]
- [libnetty-java]Affected
Source package: [netty]
Details (4)
1:4.1.48-10+deb13u1· all · trixieAffected
nvd · netty · debian · 13
1:4.1.48-10+deb13u1· all · trixieAffected
nvd · netty · debian · 13
1:4.1.48-10+deb13u1· all · trixie-securityAffected
nvd · netty · debian · 13
1:4.1.48-10+deb13u1· all · trixie-securityAffected
nvd · netty · debian · 13
[openSUSE Tumbleweed]
- [netty-bom]Unknown
Source package: [netty]
Details (1)
4.1.136-1.1· noarch · tumbleweedUnknown · Fixed:
4.1.136-1.1Version impact unknown
nvd · netty · opensuse · tumbleweed
- [netty-javadoc]Unknown
Source package: [netty]
Details (1)
4.1.136-1.1· noarch · tumbleweedUnknown · Fixed:
4.1.136-1.1Version impact unknown
nvd · netty · opensuse · tumbleweed
- [netty-parent]Unknown
Source package: [netty]
Details (1)
4.1.136-1.1· noarch · tumbleweedUnknown · Fixed:
4.1.136-1.1Version impact unknown
nvd · netty · opensuse · tumbleweed
- [netty]Fixed
Source package: [netty]
Details (1)
4.1.136-1.1· x86_64 · tumbleweedFixed · Fixed:
4.1.136-1.1nvd · netty · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11394-1.json]
- [https://github.com/advisories/GHSA-vhch-2wf3-m8rp]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44891]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-44891]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3482-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11394-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-44891]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44891.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2356.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]