CVE-2026-57215: broadcom rabbitmq_server Incorrect Authorization
Vulnerability summary
CVE-2026-57215 is a high (CVSS 8.8) Incorrect Authorization vulnerability in broadcom rabbitmq_server. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.8% 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 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ allows foreign bindings to amq.rabbitmq.reply-to destinations because volatile direct-reply-to queues can be accepted at bind and route time but are missing from Khepri-backed deletion checks, leaving persistent route entries after unbind. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
CVSS metrics
8 scores · 6 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- OSV · WolfiEcosystem advisory · calculated7.0HighCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated7.0HighCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- NVDNIST7.0HighCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/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 · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
-0.27 pp
From 0.65% 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, < 4.2.6
Debian1 product
- rabbitmq-serverAll versions (No fix recorded) | < 4.3.0-2
Rabbitmq1 product
- rabbitmq-server≥ 4.2.0, < 4.2.6 | ≥ 4.1.0, < 4.1.11 | ≥ 4.0.0, < 4.0.21 | ≥ 3.13.0, < 3.13.15
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-5cq3-v9jx-p3x3X Refsource CONFIRMREPORTAdvisoryExploitVendor Advisory
- github.com/rabbitmq/rabbitmq-server/commit/9055500d10ca7629dd2b051c6dc7a4b0bb8f6734X Refsource MISCREPORTFIXPatch
- github.com/rabbitmq/rabbitmq-server/commit/c84f3c880e0f22b49c01237cf8f86e176eeadc72X Refsource MISCREPORTFIXPatch