CVE-2026-107929
Published:October 20, 2026
Updated:November 02, 2026
When "CURLOPT_INTERFACE" (or the command line tool's "--interface" option) is
set with one of the documented prefixes ("if!", "host!", "ifhost!"), that
binding is not part of the connection reuse key, so a later transfer asking
for a different source can silently reuse an existing connection and go out
from the earlier transfer's source address
Affected Packages
libcurl (CONAN):
Affected version(s) =8.22.0 <8.23.0Fix Suggestion:
Update to version 8.23.0https://github.com/curl/curl.git (GITHUB):
Affected version(s) =curl-8_22_0 <curl-8_23_0Fix Suggestion:
Update to version curl-8_23_0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Exposure of Data Element to Wrong Session
EPSS
Base Score:
0.67