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25impact

bearer token leak on cross-protocol redirect

curl · CVE-2025-14524
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
5.3
EPSS
0.7%
First seen
2 d ago
Status
corroborated

All curl vulnerabilities