High (7.5) in haxx curl. EPSS 4.7% chance of exploitation in the next 30 days.
A flaw was found in curl before version 7.51. If cookie state is written into a cookie jar file that is later read back and used for subsequent requests, a malicious HTTP server can inject new cookies for arbitrary domains into said cookie jar.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)