CVE-2026-9547
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)
SSH improper host validation
When a libcurl-based application performs transfers via `SCP://` or `SFTP://` and utilizes the `CURLOPT_SSH_KEYFUNCTION` callback, it may silently accept an untrusted server. This vulnerability occurs when a server presents a host key type that does not match the specific key type already recorded for that host in the `known_hosts` file. Instead of rejecting the mismatch, the callback mechanism fails to properly enforce the restriction, allowing the connection to succeed without warning and risking a potential man-in-the-middle attack.
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) |
|---|---|---|---|---|---|
| 7.69.0 | 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) |
|---|---|---|---|---|---|
| 507cf6a13db0375eadd4655b4c64710db29e9cf2 | affected | git | 0b8dbbc63c98777e4584cb9fbd71df3464008ad1 | 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 |
| 7.80.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.79.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.79.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.78.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.77.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.76.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.76.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.75.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.74.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.73.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.72.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.71.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.71.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.70.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.69.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.69.0 | affected | Unavailable | Unavailable | Unavailable | None listed |