CVE-2026-80229
Published:September 02, 2026
Updated:September 02, 2026
libcurl OpenSSL provider use-after-free: pooled TLS connections can outlive their originating easy handles in the multi interface. When OpenSSL 3 providers are used the library context is improperly managed, producing a heap use-after-free on subsequent I/O. Affects curl 8.14.0 through 8.21.0, fixed in 8.22.0.
Affected Packages
libcurl (CONAN):
Affected version(s) >=8.15.0 <8.22.0Fix Suggestion:
Update to version 8.22.0https://github.com/curl/curl.git (GITHUB):
Affected version(s) >=curl-8_14_0 <curl-8_22_0Fix Suggestion:
Update to version curl-8_22_0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Use After Free