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Servers and applications

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…

Severity
Medium 5.9
Published
8 Jan 2026
Last changed
15 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.18.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • From 8.8.0 before 8.18.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-13034
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-13034