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oslo.messaging: openstack: OpenStack oslo.messaging: Man-in-the-middle attack via improper TLS hostname verification

🗓️ 13 Aug 2026 23:45:16Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 15 Views

oslo.messaging RabbitMQ driver lacks TLS hostname verification, enabling MITM attacks on RPC traffic.

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OpenStack oslo.messaging does not verify RabbitMQ broker hostname during TLS handshake
4 Jun 202618:30
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8noarchpython3-oslo-messaging10.2.4-2.20260710155333.82281a0.el8ostpython3-oslo-messaging-10.2.4-2.20260710155333.82281a0.el8ost.noarch.rpm

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11 Oct 2026 18:57Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.4
EPSS0.00281
SSVC
15