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Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software allowing attackers to perform HTTP2 attacks.

🗓️ 27 Feb 2023 08:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Hyperium Hyper before 0.14.19 blocks max header list size customization in H2 software, enabling HTTP/2 attacks.

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18 Feb 2026 09:50Current
7.7High risk
Vulners AI Score7.7
CVSS 3.17.5
EPSS0.00348
SSVC
1