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CVE-2025-46421mediumCWE-497

Libsoup: information disclosure may leads libsoup client sends authorization header to a different host when being redirected by a server

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.8epss 0.5%
exploitation probability
0.5%top 57% of all CVEs
observed exploitation
nono source reports it
A flaw was found in libsoup. When libsoup clients encounter an HTTP redirect, they mistakenly send the HTTP Authorization header to the new host that the redirection points to. This allows the new host to impersonate the user to the original host that issued the redirect.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N