RabbitMQ is a messaging and streaming broker. Prior to 3.13.14, 4.0.19, 4.1.10, and 4.2.5, the rabbitmq_management HTTP API accepts oversized valid JSON bodies on with_decode and direct_request paths because read_complete_body checks the accumulated size before the final chunk but not the final combined size. This issue is fixed in versions 3.13.14, 4.0.19, 4.1.10, and 4.2.5.
CVE-2026-57212
This high-severity CVE scores 7.7 under NVD CVSS v3. 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).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.7
- EG Score
- 7.7(medium)
- EG Risk
- 51(Track)EG Risk 51/100SSVC: 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 computedSeverity77% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 36%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 13, 2026
Advisory Details (6)
Auto-updated Jul 10, 2026RabbitMQ management HTTP API accepts request bodies larger than configured max_http_body_size · Advisory · rabbitmq/rabbitmq-server · GitHub
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cmq-vp28-xqrjRabbitMQ 4.2.5
Patch available: rabbitmq/rabbitmq-server v4.2.5
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.5HTTP API: refactor `read_complete_body/1` (backport #15712)
Fix merged in rabbitmq/rabbitmq-server PR #15714 on 2026-03-12 — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/pull/15714HTTP API: refactor `read_complete_body/1`
Fix merged in rabbitmq/rabbitmq-server PR #15712 on 2026-03-12 — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/pull/15712commit b8fc2ef7c50a (rabbitmq/rabbitmq-server)
Fix landed in rabbitmq/rabbitmq-server commit b8fc2ef7c50a — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/commit/b8fc2ef7c50a2797d15e1ea7cf34f290032303bbcommit 3976d148901b (rabbitmq/rabbitmq-server)
Fix landed in rabbitmq/rabbitmq-server commit 3976d148901b — awaiting tagged release
https://github.com/rabbitmq/rabbitmq-server/commit/3976d148901bdfa82e1cd60b7a4534e073266ba5Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | rabbitmq-server4-2-main-4.2.8-1.hum1 | 2026-07-06 | redhat |
| redhat | rabbitmq-server4-3-main-4.3.2-1.hum1 | 2026-07-06 | redhat |
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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 15× in last 7d / 35× 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.
- 2026-07-29 13:56 UTCVendor advisory
- 2026-07-29 01:39 UTCEG score recompute
- 2026-07-28 15:37 UTCEPSS rescore
- 2026-07-28 01:02 UTCEG score recompute
- 2026-07-27 14:14 UTCEPSS rescore
- 2026-07-27 00:27 UTCEG score recompute
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 12:08 UTCEG score recompute
- 2026-07-25 14:18 UTCEPSS rescore
- 2026-07-25 14:18 UTCEPSS rescore
- 2026-07-24 14:18 UTCEPSS rescore
- 2026-07-24 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:20 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:25 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
Show 10 moreShow fewer
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-14 10:41 UTCEG score recompute▲ 0.60
- 2026-07-14 00:27 UTCNVD updateCVSS v3 → 7.7
- 2026-07-13 22:31 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-10 20:39 UTCEG score recompute
- 2026-07-10 20:37 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
What is CVE-2026-57212?
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What is the CVSS score of CVE-2026-57212?
How do I remediate CVE-2026-57212?
Dependency Blast Radius
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