PoC Index

CVE-2023-38039

HIGH 7.5EPSS 62.2%

When curl retrieves an HTTP response, it stores the incoming headers so thatthey can be accessed later via the libcurl headers API.However, curl did not have a limit in how many or how large headers it wouldaccept in a response, allowing a malicious server to stream an endless seriesof headers and eventually cause curl to run out of heap memory.

CVSS v3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
62.25% chance of exploitation in the next 30 days, 99th percentile
Published
2023-09-15
Updated
2025-12-02

Proof-of-concept exploits (1)

References

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