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Search Results (2 CVEs found)
CVE | Vendors | Products | Updated | CVSS v3.1 |
---|---|---|---|---|
CVE-2025-57804 | 1 Hyper | 1 H2 | 2025-08-26 | 5.3 Medium |
h2 is a pure-Python implementation of a HTTP/2 protocol stack. Prior to version 4.3.0, an HTTP/2 request splitting vulnerability allows attackers to perform request smuggling attacks by injecting CRLF characters into headers. This occurs when servers downgrade HTTP/2 requests to HTTP/1.1 without properly validating header names/values, enabling attackers to manipulate request boundaries and bypass security controls. This issue has been patched in version 4.3.0. | ||||
CVE-2023-26964 | 1 Hyper | 2 H2, Hyper | 2025-02-11 | 7.5 High |
An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS). |
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