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HAProxy 2.9.x before 2.9.10 3.0.x before 3.0.4 and 3.1.x through 3.1-dev6 allows a remote denial of service for HTTP/2 zero-copy forwarding (h2_send loop) under a certain set of conditions as exploited in the wild in 2024.

🗓️ 15 Oct 2024 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

HAProxy before 2.9.10, 3.0.4, and 3.1-dev6 allow remote DoS via HTTP/2 zero-copy forwarding.

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18 Feb 2026 09:26Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.5
EPSS0.01495
SSVC
1