CVE detail
CVE-2023-38039 — CVE-2023-38039
Published 2023-09-15 · Modified 2026-06-17 · Vendor haxx · Product curl · Source nvd
HIGH
severity
CVSS-derived band
0.6225
EPSS probability
exploitation probability, 30d
99.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog
Description
When curl retrieves an HTTP response, it stores the incoming headers so that
they can be accessed later via the libcurl headers API.
However, curl did not have a limit in how many or how large headers it would
accept in a response, allowing a malicious server to stream an endless series
of headers and eventually cause curl to run out of heap memory.
Remediation
No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.
References