Insufficiently protected credentials in cURL - CVE-2025-14524
Published: January 7, 2026
Vulnerability identifier: #VU121026
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-14524
CWE-ID: CWE-522
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: curl.haxx.se
Affected software:
cURL
cURL
Detailed vulnerability description
The vulnerability allows an attacker to obtain bearer token,
The vulnerability exists due to an error when handling cross-protocol redirects. When an oauth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new target host.
How to mitigate CVE-2025-14524
Install updates from vendor's website.