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OpenStack oslo.messaging does not verify RabbitMQ broker hostname during TLS handshake

🗓️ 04 Jun 2026 18:30:31Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 26 Views

OpenStack oslo.messaging TLS hostname not verified for RabbitMQ 1.0.0–17.3.0, even with ssl_ca_file.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-44393
4 Jun 202600:00
–attackerkb
cgr
Chainguard
CVE-2026-44393 vulnerabilities
2 Oct 202602:55
–cgr
cnnvd
CNNVD
OpenStack Oslo.messaging encryption issue vulnerability
4 Jun 202600:00
–cnnvd
cve
CVE
CVE-2026-44393
4 Jun 202600:00
–cve
cvelist
Cvelist
CVE-2026-44393
4 Jun 202600:00
–cvelist
debiancve
Debian CVE
CVE-2026-44393
4 Jun 202600:00
–debiancve
euvd
EUVD
EUVD-2026-34294
4 Jun 202600:00
–euvd
mend
Mend
CVE-2026-44393
4 Jun 202600:00
–mend
nvd
NVD
CVE-2026-44393
4 Jun 202616:16
–nvd
osv_cga
osv_cga
CGA-236H-JMPX-GJGM
16 Jul 202612:09
–osv_cga
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Vulners
Node
oslo.messagingRange1.0.0–17.3.0pip

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15 Jul 2026 22:30Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.4
EPSS0.00172
SSVC
26