CVE-2025-14524

A flaw was found in curl. When an OAuth2 (Open Authorization) bearer token is used for an HTTP(S) transfer, and that transfer performs a cross-protocol redirect to a different scheme like IMAP, LDAP, POP3, or SMTP, curl might incorrectly pass the bearer token to the new target host. This could lead to information disclosure, where sensitive authentication tokens are exposed to unintended recipients.

This vulnerability is rated Moderate for Red Hat because curl might inadvertently pass an OAuth2 bearer token during a cross-protocol redirect from HTTP(S) to IMAP, LDAP, POP3, or SMTP schemes. This could lead to unintended information disclosure if applications using curl are configured to perform such redirects with bearer tokens.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.