CVE-2025-14524

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.

Score

CVSS 3.1 5.3 Medium

Status

Modified - 2499f714-1537-4658-8207-48ae4bb9eae9

Published

2026-01-08

Last modified

2026-09-15

Weaknesses

CWE-522, CWE-601

Affected products

• Curl (Curl)
• Curl (Haxx)

References

• https://curl.se/docs/CVE-2025-14524.html
• https://curl.se/docs/CVE-2025-14524.json
• https://hackerone.com/reports/3459417
• http://www.openwall.com/lists/oss-security/2026/01/07/4