CVE-2025-4947

Medium

Description

libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.

SeverityMedium
CVSS6.5
Exploit probability—
ProductHaxx Curl
PublishedMay 28, 2025
First seenMay 28, 2025
Weakness typeCWE-295CWE-295

How to fix

Update
  • haxx curl8.14.0 or later

Affected products

ProductAffected versionsFixed in
haxx curl8.8.0 ≤ v < 8.14.08.14.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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