CVE-2026-44838
HighCVSS 8.1Summary
RabbitMQ to broker wiadomości i strumieniowania. W wersjach od 4.2.0 do przed 4.2.4, wtyczka MQTT RabbitMQ umożliwia autoryzację na poziomie tematów przy użyciu wyrażeń regularnych z podstawieniem zmiennych, co pozwala na obejście autoryzacji przez uwierzytelnionego użytkownika MQTT.
Risk Assessment
Podatność ta pozwala na nieautoryzowany dostęp do tematów, co może prowadzić do ujawnienia danych lub nieautoryzowanego działania w systemie. Organizacje mogą być narażone na ataki, które wykorzystują tę lukę do manipulacji danymi.
Recommendation
Zaleca się aktualizację RabbitMQ do wersji 4.2.4 lub 4.3.0, aby usunąć tę podatność. Dodatkowo, warto przeanalizować i dostosować polityki autoryzacji w celu zwiększenia bezpieczeństwa.
Related vulnerabilities
- CVE-2026-82533Critical
DeepSeek Harness before 0.1.2-alpha.1 contains an authentication bypass vulnerability in its local HTTP control-plane API that allows attackers to gain full agent control by supplying a spoofed Host header, as the server validates only the client-supplied Host header value rather than the actual TCP connection origin.
- CVE-2026-26084Critical
An improper access control vulnerability in Fortinet FortiSandbox versions 5.0.0 through 5.0.5, 4.4.0 through 4.4.8, Cloud 5.0.4 through 5.0.5, and PaaS 5.0.4 through 5.0.5 may allow an attacker to access sensitive information via crafted HTTP requests.
- CVE-2026-79576Critical
An issue in the Single-Sign On (SSO) component of Digital-Infrastructure v9.6.7 allows attackers to authenticate as any user, including the Admin, without a password.
- CVE-2026-61516Critical
Netis NX10 firmware versions V4.0.1.5808 and V3.0.0.4142 contain an information disclosure vulnerability that allows unauthenticated attackers to retrieve the administrator password by sending a request to the sysinfo action in the web management interface without a valid session.
- CVE-2026-12745Critical
A deserialization of untrusted data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote unauthenticated attacker to execute arbitrary code on the server.
- CVE-2026-12744Critical
A deserialization of untrusted data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote unauthenticated attacker to execute arbitrary code on the server.
- CVE-2026-12650Critical
A deserialization of untrusted data vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
- CVE-2026-12647Critical
A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
- CVE-2026-12646Critical
A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
- CVE-2026-12645Critical
A Missing Authorization vulnerability in Ivanti Neurons for ITSM before 2026.2 allows a remote authenticated attacker to execute arbitrary code on the server.
Original NVD description (English source)
RabbitMQ is a messaging and streaming broker. From 4.2.0 to before 4.2.4, RabbitMQ's MQTT plugin allows for topic-level authorization using regular expressions with variable substitution. Administrators can create patterns such as ^{client_id}-sensors$ to restrict user access to topics that include their client ID. However, the client_id is provided by the user in the MQTT CONNECT packet and is inserted into the regex pattern without escaping special regex characters. This flaw enables an authenticated MQTT user to inject regex operators to bypass authorization. This vulnerability is fixed in 4.2.4 and 4.3.0.