CVE-2026-80230
Published:September 06, 2026
Updated:September 22, 2026
When "CURLOPT_PINNEDPUBLICKEY" is configured alongside options that disable
standard peer verification ("CURLOPT_SSL_VERIFYPEER = 0" and
"CURLOPT_SSL_VERIFYHOST = 0"), libcurl fails to enforce public key pinning on
connections established without a presented server certificate. Bypassing the
pinning check under these disabled-verification conditions allows
unauthenticated connections to succeed when they should be rejected.
Affected Packages
libcurl (CONAN):
Affected version(s) >=7.76.0 <8.22.0Fix Suggestion:
Update to version 8.22.0https://github.com/curl/curl.git (GITHUB):
Affected version(s) >=curl-7_45_0 <curl-8_22_0Fix Suggestion:
Update to version curl-8_22_0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
0.57