CVE-2026-57212: broadcom rabbitmq_server
Vulnerability summary
CVE-2026-57212 is a high (CVSS 7.7) vulnerability in broadcom rabbitmq_server. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 10-07-2026PublishedVulnerability first disclosed.
- 13-07-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
8 scores · 6 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
- OSV · WolfiEcosystem advisory · calculated7.1HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
- OSV · ChainguardEcosystem advisory · calculated7.1HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
- NVDNIST7.1HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated7.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.7HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
-0.30 pp
From 0.73% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundRabbitmq Server
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Chainguard6 products
- rabbitmq-server-4.1All versions (No fix recorded)
- rabbitmq-server-4.1-docAll versions (No fix recorded)
- rabbitmq-server-4.1-iamguarded-compatAll versions (No fix recorded)
- rabbitmq-server-fips-4.1All versions (No fix recorded)
- rabbitmq-server-fips-4.1-docAll versions (No fix recorded)
Broadcom1 product
- rabbitmq_server≥ 3.13.0, < 4.2.5
Debian1 product
- rabbitmq-serverAll versions (No fix recorded) | < 4.3.0-2
Rabbitmq1 product
- rabbitmq-server≥ 4.2.0, < 4.2.5 | ≥ 4.1.0, < 4.1.10 | ≥ 4.0.0, < 4.0.19 | ≥ 3.13.0, < 3.13.14
Ubuntu1 product
- rabbitmq-serverAll versions (No fix recorded)
Wolfi1 product
- rabbitmq-server-4.1All versions (No fix recorded)
6 vendors · 11 products
References
11 links- github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-5cmq-vp28-xqrjX Refsource CONFIRMREPORTAdvisoryExploitVendor Advisory
- github.com/rabbitmq/rabbitmq-server/commit/3976d148901bdfa82e1cd60b7a4534e073266ba5X Refsource MISCREPORTFIXPatch
- github.com/rabbitmq/rabbitmq-server/commit/b8fc2ef7c50a2797d15e1ea7cf34f290032303bbX Refsource MISCREPORTFIXPatch