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HTTP/2 push headers memory-leak

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2024-2398

Published

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

Source published
27 Mar 2024 07:55:48 UTC
Source modified
15 Oct 2026 00:21:24 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
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Sources read 9 Nov 21:20 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current