BIT-rabbitmq-2026-67407
See a problem?- Import Source
- https://github.com/bitnami/vulndb/tree/main/data/rabbitmq/BIT-rabbitmq-2026-67407.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-rabbitmq-2026-67407
- Aliases
-
- CVE-2026-67407
- GHSA-q46v-hrvq-hp24
- Published
- 2026-10-01T09:33:46Z
- Modified
- 2026-10-01T10:10:45Z
- Summary
- RabbitMQ: Incomplete fix for CVE-2026-44838: `escape_regex_char/1` does not escape `-`, leaving room for an MQTT topic permission bypass
- Details
-
RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3 and 4.2.9 and 4.1.14 and 4.0.23, Incomplete fix for CVE-2026-44838: escaperegexchar/1 does not escape -, leaving room for an MQTT topic permission bypass. the CVE-2026-44838 fix made expandtopicpermission/2 escape regex metacharacters in expanded topic-permission variables (escaperegex(V)), but escaperegexchar/1 escapes \ ^ $ . | ? + ( ) [ ] { } and omits -. When a topic permission template places {clientid} inside a [...] character class A low-privileged authenticated MQTT user controlling its clientid can broaden topic authorization (read and write) when templates embed {clientid} in a [...] This issue is fixed in versions 4.3.3 and 4.2.9 and 4.1.14 and 4.0.23.
- Database specific
{ "cpes": [ "cpe:2.3:a:vmware:rabbitmq:*:*:*:*:*:*:*:*" ], "severity": "Medium" }- References
Affected packages
Bitnami / rabbitmq
Package
- Name
- rabbitmq
- Purl
- pkg:bitnami/rabbitmq
Severity
- 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/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 CVSS Calculator