Insufficiently protected credentials in cURL - CVE-2026-6253
Published: April 29, 2026
Vulnerability identifier: #VU128454
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-6253
CWE-ID: CWE-522
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
cURL
cURL
Software vendor:
curl.haxx.se
curl.haxx.se
Description
The vulnerability allows a remote attacker to gain access to sensitive information on the system.
The vulnerability exists due to insufficiently protected credentials over redirect-to proxy. A remote attacker can gain access to sensitive information on the system.
Remediation
Install updates from vendor's website.