Description

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.

INFO

Published Date :

2026-01-08T10:00:25.773Z

Last Modified :

2026-01-08T14:58:20.565Z

Source :

curl
AFFECTED PRODUCTS

The following products are affected by CVE-2025-13034 vulnerability.

Vendors Products
Curl
  • Curl
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-13034.

CVSS Vulnerability Scoring System

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