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cowlib: cowlib: Link header smuggling allows out-of-band connections to attacker-controlled origins

🗓️ 09 Sep 2026 19:47:19Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

Link header smuggling in cowlib via improper encoding enables attacker-controlled connections.

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CVE-2026-43971 Link Header Directive Smuggling via Unescaped target/rel/Attribute Keys in cow_link:link/1
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21 Aug 202621:03
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64rabbitmq-server4.34.3.5-1.1.hum1rabbitmq-server4.3-4.3.5-1.1.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64rabbitmq-server4.34.3.5-1.1.hum1rabbitmq-server4.3-4.3.5-1.1.hum1.x86_64.rpm

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09 Sep 2026 20:12Current
5.9Medium risk
Vulners AI Score5.9
CVSS 46.3
EPSS0.00524
SSVC
11