CVE-2026-44839: broadcom rabbitmq_server
CVSS: 5.6v4.0MediumAnalyzed
AliasesUBUNTU-CVE-2026-44839DEBIAN-CVE-2026-44839
Published 27-05-2026Last modified 27-05-2026
Vulnerability summary
CVE-2026-44839 is a medium (CVSS 5.6) vulnerability in broadcom rabbitmq_server. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.1% of scored vulnerabilities.
CVSS score
5.6/10
010
Medium · v4.0 (CVE.org)EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 27-05-2026PublishedVulnerability first disclosed.
- 27-05-2026Last modifiedVulnerability information updated.
Description
RabbitMQ is a messaging and streaming broker. From 3.7.0 to before 4.1.2 and 4.0.13, This vulnerability is fixed in 4.1.2 and 4.0.13.
CVSS metrics
6 scores · 4 sources · 2 versionsMedium 5.6Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.6MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- NVDNIST5.6MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/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
Medium 4.8Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 19-09-2026
19-09-202619-10-2026
EPSS score0.18%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Broadcom1 product
- rabbitmq_server≥ 3.7.0, < 4.0.13 | ≥ 4.1.0, < 4.1.2
Debian1 product
- rabbitmq-serverAll versions (No fix recorded) | < 4.3.0-2
Rabbitmq1 product
- rabbitmq-server≥ 3.7.0, < 4.0.13 | ≥ 4.1.0-alpha, < 4.1.2
Ubuntu1 product
- brokerAll versions (No fix recorded)
4 vendors · 4 products
References
6 links- github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-fh5r-jpm3-fjwpX Refsource CONFIRMREPORTPatchVendor Advisory
- github.com/rabbitmq/rabbitmq-server/commit/7f54319279d1ece161ae0b4cdc6f0e58a4045eb5X Refsource MISCREPORTPatch
