Vulnerability DatabaseCVE-2026-9079
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CVE-2026-9079
Published:June 24, 2026
Updated:June 24, 2026
libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them.
Affected Packages
https://github.com/curl/curl.git (GITHUB):
Affected version(s) >=curl-8_8_0 <curl-8_21_0
Fix Suggestion:
Update to version curl-8_21_0
Related Resources (1)
https://curl.se/docs/CVE-2026-9079.html
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE