symfony/http-client is a module for the Symphony PHP framework which provides powerful methods to fetch HTTP resources synchronously or asynchronously. When using the `NoPrivateNetworkHttpClient`, some internal information is still leaking during host resolution, which leads to possible IP/port enumeration. As of versions 5.4.46, 6.4.14, and 7.1.7 the `NoPrivateNetworkHttpClient` now filters blocked IPs earlier to prevent such leaks. All users are advised to upgrade. There are no known workarounds for this vulnerability.

GitHub, Inc. AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

GitHub, Inc. CWE-200

GitHub, Inc. https://github.com/symfony/symfony/commit/296d4b34a33b1a6ca5475c6040b3203622520f5b [No types assigned]

GitHub, Inc. https://github.com/symfony/symfony/security/advisories/GHSA-9c3x-r3wp-mgxm [No types assigned]