CVE-2026-61634

UNRATEDCVSS · not yet scoredTrending — 4 sources updated this week

Also known asEUVD-2026-61046 (ENISA EUVD) · GHSA-5xwg-cfvj-gff5 (GitHub Security Advisories)Source: ENISA EUVD

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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP frame_max value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and NettyFrameHandlerFactory continue to validate broker-controlled frame payload lengths against maxInboundMessageBodySize because the negotiated limit is not applied consistently through setMaxInboundFramePayloadSize. A malicious or compromised broker can send a method frame larger than the negotiated frame_max during or after connection establishment, causing the client to allocate and decode a protocol-invalid frame instead of rejecting it with MalformedFrameException. The protocol violation can disrupt the affected connection and cause client-side denial of service. This issue is fixed in version 5.33.0.

CVSS v3
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EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
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EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 18, 2026

Last Modified

October 22, 2026

References (6)

Vendor Advisories for CVE-2026-61634(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
mavencom.rabbitmq:amqp-client @ 5.33.0 (fixes < 5.33.0)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2
  • every version on: no fix on record
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Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2
  • every version on: no fix on record
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Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rabbitmq-java-client5.0.0-1.1, 5.0.0-2
  • every version on: no fix on record
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Maven(1)
PackageVulnerable rangeFix by version rangeDependents
com.rabbitmq:amqp-client1.3.0 ... 5.9.0 (150 versions)
  • every version up to 5.33.0: fixed in 5.33.0
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Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-11-01 07:41 UTCGHSA enrichmentGHSA-5xwg-cfvj-gff5 · GitHub severity LOW
  3. 2026-11-01 07:41 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-10-30 12:25 UTCOSV refresh
  7. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-25 14:14 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-10-22 22:29 UTCEG score recompute
  16. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-10-18 03:25 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  23. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 50 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-12 15:50 UTCEG score recompute
  4. 2026-10-11 19:34 UTCEG score recompute
  5. 2026-10-11 16:49 UTCEG score recompute
  6. 2026-10-11 14:11 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  18. 2026-09-30 20:50 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  24. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  25. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  26. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  27. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  28. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  29. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  30. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  31. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  32. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  33. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  34. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  35. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  36. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  37. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  38. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  39. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  40. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  41. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  42. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  43. 2026-08-21 12:53 UTCEG score recompute
  44. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  45. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  46. 2026-08-18 18:22 UTCNVD update
  47. 2026-08-18 17:39 UTCMITRE cvelistV5
  48. 2026-08-18 17:20 UTCNVD update
  49. 2026-08-18 16:50 UTCEG score recompute
  50. 2026-08-18 16:49 UTCMITRE cvelistV5first tracked

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Frequently asked(4)

What is CVE-2026-61634?
CVE-2026-61634 is a vulnerability whose severity is not yet rated; its CVE record was 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 5.33.0, the AMQP connection tuning path records the negotiated AMQP frame_max value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and…
When was the CVE record for CVE-2026-61634 published?
The CVE record for CVE-2026-61634 was published on August 18, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 22, 2026; the record at its source may have been updated since.
Is CVE-2026-61634 actively exploited?
CVE-2026-61634 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-61634?
A fix for CVE-2026-61634 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-61634 are linked in the Vendor Advisories panel on this page.

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