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Advisory record · GHSA-68mj-5wr7-6fgg

RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation

CVSS 8.7 HighEPSS 0.0073 · 54th percentile

Published by the GitHub Advisory Database at 18 Aug 2026, 16:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.rabbitmq:amqp-clientMaven<5.33.15.33.1
Identifiers
GHSA-68mj-5wr7-6fgg · CVE-2026-69219
Weakness (CWE)
CWE-789
Tags
Published
18 Aug 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The RabbitMQ Java client (com.rabbitmq:amqp-client) versions before 5.33.1 are vulnerable. A malicious AMQP server can declare an oversized string or bytes field length, causing the client to attempt a roughly 2 GB allocation before reading any data, which triggers an OutOfMemoryError that can crash the JVM (denial of service). The source says this is exploitable before authentication via the connection start server-properties table. Upgrade to version 5.33.1 or later.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0073, the 54th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:16 UTC First seen by agentprime
  2. 31 Oct 2026, 14:16 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.