CVE-2026-69219

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 18, 2026

Last Modified

September 18, 2026

Advisory Details (6)

Auto-updated Aug 18, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

5.33.1

Patch available: rabbitmq/rabbitmq-java-client v5.33.1

https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.1
github_commit

commit 6a87a8dcdc8b (rabbitmq/rabbitmq-java-client)

Fix landed in rabbitmq/rabbitmq-java-client commit 6a87a8dcdc8b — awaiting tagged release

https://github.com/rabbitmq/rabbitmq-java-client/commit/6a87a8dcdc8b4cc4b961a7cdd388276446e5dfb2
github_commit Patch Available

commit 388209356c64 (rabbitmq/rabbitmq-java-client)

Patch available: rabbitmq/rabbitmq-java-client v5.33.1 (contains commit 388209356c64)

https://github.com/rabbitmq/rabbitmq-java-client/commit/388209356c6478088efce4d8a07b68e73837a7a0
github_pr Patch Available

Harden ValueReader (backport #2007)

Patch available: rabbitmq/rabbitmq-java-client v5.33.1 (PR #2008 merged 2026-07-06)

https://github.com/rabbitmq/rabbitmq-java-client/pull/2008
github_pr

Harden ValueReader

Fix merged in rabbitmq/rabbitmq-java-client PR #2007 on 2026-07-06 — awaiting tagged release

https://github.com/rabbitmq/rabbitmq-java-client/pull/2007
github Patch Available

ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation · Advisory · rabbitmq/rabbitmq-java-client · GitHub

https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-68mj-5wr7-6fgg

Vendor Advisories for CVE-2026-69219(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2——
Maven(1)
PackageVulnerable rangeFixed inDependents
com.rabbitmq:amqp-client1.3.0 ... 5.9.0 (151 versions)5.33.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 20:09 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:51 UTCEG score recompute
  4. 2026-09-16 21:56 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 10:08 UTCEG score recompute
  7. 2026-09-16 05:15 UTCEPSS rescore
  8. 2026-09-15 09:05 UTCEG score recompute
  9. 2026-09-13 22:31 UTCEG score recompute
  10. 2026-09-12 23:37 UTCEG score recompute
  11. 2026-09-12 00:42 UTCEG score recompute
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 13:14 UTCEG score recompute
  14. 2026-09-11 09:37 UTCEPSS rescore
  15. 2026-09-10 14:08 UTCEG score recompute
  16. 2026-09-09 03:25 UTCEG score recompute
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-07 21:54 UTCEG score recompute
  19. 2026-09-07 16:01 UTCEPSS rescore
  20. 2026-09-06 22:11 UTCEG score recompute
  21. 2026-09-06 13:47 UTCEPSS rescore
  22. 2026-09-05 23:08 UTCEG score recompute
  23. 2026-09-05 15:31 UTCEPSS rescore
  24. 2026-09-05 00:07 UTCEG score recompute
  25. 2026-09-04 12:02 UTCEG score recompute
Show 32 more
  1. 2026-09-04 05:07 UTCEPSS rescore
  2. 2026-09-03 00:45 UTCEG score recompute
  3. 2026-09-02 14:12 UTCEPSS rescore
  4. 2026-09-01 14:17 UTCEG score recompute
  5. 2026-09-01 13:54 UTCEPSS rescore
  6. 2026-09-01 04:40 UTCEPSS rescore
  7. 2026-08-31 01:47 UTCEG score recompute
  8. 2026-08-30 19:17 UTCEPSS rescore
  9. 2026-08-30 02:51 UTCEG score recompute
  10. 2026-08-30 01:22 UTCEPSS rescore
  11. 2026-08-29 03:52 UTCEG score recompute
  12. 2026-08-28 21:42 UTCEPSS rescore
  13. 2026-08-27 19:21 UTCEG score recompute
  14. 2026-08-26 19:34 UTCEG score recompute
  15. 2026-08-26 14:47 UTCEPSS rescore
  16. 2026-08-25 20:38 UTCEG score recompute
  17. 2026-08-25 13:49 UTCEPSS rescore
  18. 2026-08-24 21:32 UTCEG score recompute
  19. 2026-08-24 10:00 UTCEG score recompute
  20. 2026-08-23 11:05 UTCEG score recompute
  21. 2026-08-23 00:19 UTCEPSS rescore
  22. 2026-08-22 00:44 UTCEG score recompute
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-21 01:48 UTCEG score recompute
  25. 2026-08-20 22:56 UTCEPSS rescore
  26. 2026-08-20 02:53 UTCEG score recompute
  27. 2026-08-19 17:04 UTCEPSS rescore
  28. 2026-08-19 15:25 UTCEG score recompute
  29. 2026-08-19 14:58 UTCEG score recompute
  30. 2026-08-18 17:21 UTCEG score recompute
  31. 2026-08-18 16:35 UTCEG score recompute
  32. 2026-08-18 16:34 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-69219?
CVE-2026-69219 is a high vulnerability published on August 18, 2026. The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a…
When was CVE-2026-69219 disclosed?
CVE-2026-69219 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-69219 actively exploited?
CVE-2026-69219 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 63.9% of all scored CVEs.
What is the CVSS score of CVE-2026-69219?
CVE-2026-69219 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-69219?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-69219, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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