CVE-2024-2398
CVSS v3
8.6
HIGH
EPSS Score
36.1 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2024-03-27
Frequently asked questions
What is CVE-2024-2398?
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.
Is CVE-2024-2398 actively exploited?
Active exploitation of CVE-2024-2398 has not been confirmed. Its EPSS score was 36.1% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2024-2398?
CVE-2024-2398 has a CVSS v3 base score of 8.6 (HIGH severity).
Is CVE-2024-2398 affecting your environment?
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