CVE-2026-12064
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
proto-default skips SSH verification
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.81.0 | affected | semver | 8.14.2 | Unavailable | None listed |
| 8.15.0 | affected | semver | 8.16.1 | Unavailable | None listed |
| 8.17.0 | affected | semver | 8.20.1 | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 18270893abdb19f0ca170c118f8a2847dbd304be | affected | git | ab3bb8cd8be8f9d4acb97da0418abc279182041e | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.20.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.19.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.18.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.17.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.16.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.15.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.14.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.14.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.13.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.12.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.12.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.11.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.11.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.10.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.10.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.9.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.9.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.8.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.7.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.3.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.0.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.0.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.88.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.88.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.87.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.86.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.85.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.84.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.83.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.83.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.82.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.81.0 | affected | Unavailable | Unavailable | Unavailable | None listed |