CVE-2025-13034
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.
- Haxx Curl
- < 8.18.0
- CVSS 3.1
- 5.9 MEDIUM
- EPSS
- 0.2% (14th percentile)
- Weakness
- CWE-295
- NVD status
- Analyzed
- Published
- 2026-01-08
CVE-2025-13034 at NVD
No indexed exploits for CVE-2025-13034 yet
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No exploit for CVE-2025-13034 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.