ALPINE-CVE-2025-13034

ALPINE-CVE-2025-13034

This page contains facts from public vulnerability sources. Check the original advisory before updating.

When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool, curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would then make curl allow the connection without performing the proper check, thus not noticing a possible impostor. To skip this check, the connection had to be done with QUIC with ngtcp2 built to use GnuTLS and the user had to explicitly disable the standard certificate verification.

CVSS 5.9 · Medium · Fix available

Published

2026-01-08T10:15:45.407Z

Updated

2026-10-18T12:30:03.012665675Z

Stack: system

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