CVE Watch7 jul 2026

CVE-2026-12064

When a user invokes curl using a schemeless URL combined with `--proto-default` sftp (or scp), a disconnect occurs between the tool layer an

CVSS

7.5

Alto

EPSS

0.6%

p44

KEV

—

Exploit Today

0-100

Publicado: 3 jul 2026 · Última mod.: 7 jul 2026 · CWE-295

EPSS · 30d

0.2%EPSS · 30 días0.6%

2026-07-042026-07-17

Descripción técnica

When a user invokes curl using a schemeless URL combined with `--proto-default` sftp (or scp), a disconnect occurs between the tool layer and libcurl. The tool layer incorrectly infers the URL scheme, which erroneously bypasses the initialization of critical SSH security options like CURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS. Conversely, the libcurl runtime successfully honors CURLOPT_DEFAULT_PROTOCOL and establishes the connection via SFTP/SCP as specified. Because the tool layer skipped the security configuration, these SSH host verification options are silently omitted, causing curl to connect to an unverified SSH remote host without throwing an error.

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