CVE-2026-57220

EUVD-2026-43018
RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 59.16%
Affected Products (NVD)
VendorProductVersion
broadcomrabbitmq_server
𝑥
< 4.2.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
rabbitmq-server
bookworm
3.10.8-1.1+deb12u1
fixed
bookworm (security)
3.10.8-1.1+deb12u1
fixed
bullseye
3.8.9-3+deb11u1
fixed
bullseye (security)
3.8.9-3+deb11u1
fixed
forky
4.3.2-4
fixed
sid
4.3.2-4
fixed
trixie
4.0.5-6+deb13u2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
rabbitmq-server
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Azure Linux logo
Azure Linux Releases
Azure Package
Release
rabbitmq-server
Azure Linux 3.0
0:3.13.7-7.azl3
fixed
Common Weakness Enumeration
References
https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547
https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e
https://github.com/rabbitmq/rabbitmq-server/pull/16171
https://github.com/rabbitmq/rabbitmq-server/pull/16173
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q