CVE-2026-12064
ADVISORY - nistSummary
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.
EPSS Score: 0.00339 (0.269)
Common Weakness Enumeration (CWE)
ADVISORY - nist
Improper Certificate Validation
Alpine
CREATED
UPDATED
ADVISORY IDCVE-2026-12064
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
| Package | Type | OS Name | OS Version | Affected Ranges | Fix Versions |
|---|---|---|---|---|---|
| alpine/curl | apk | alpine | 3.23 | <=8.19.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.83.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.83.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.84.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.85.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.86.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.87.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=7.88.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.0.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.1.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.10.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.11.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.11.0-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.11.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.11.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.12.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.12.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.14.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.14.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.14.1-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.3.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.4.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.5.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.6.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.7.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.9.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.20 | <=8.9.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.23 | <=8.17.0-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.23 | <=8.20.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.83.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.83.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.84.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.85.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.86.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.87.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=7.88.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.0.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.1.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.10.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.11.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.11.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.11.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.12.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.12.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.14.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.14.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.14.1-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.3.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.4.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.5.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.6.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.7.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.9.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.9.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.19 | <=8.9.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.83.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.83.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.84.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.85.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.86.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.87.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=7.88.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.0.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.1.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.10.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.11.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.11.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.12.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.14.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.14.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.14.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.14.1-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.14.1-r3 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.3.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.4.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.5.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.6.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.7.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.9.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.22 | <=8.9.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.83.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.83.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.84.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.85.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.86.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.87.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=7.88.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.0.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.1.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.10.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.11.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.11.0-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.11.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.11.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.12.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.12.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.12.1-r1 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.14.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.14.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.14.1-r2 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.3.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.4.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.5.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.6.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.7.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.9.0-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.21 | <=8.9.1-r0 | Not yet available |
| alpine/curl | apk | alpine | 3.24 | <8.21.0-r0 | 8.21.0-r0 |
| alpine/curl | apk | alpine | edge | <8.21.0-r0 | 8.21.0-r0 |
Severity and metrics
No CVSS data available from this advisory.
NIST
CREATED
UPDATED
ADVISORY IDCVE-2026-12064
EXPLOITABILITY SCORE
3.9
EXPLOITS FOUND
COMMON WEAKNESS ENUMERATION (CWE)
CVSS SCORE
7.5highDebian
CREATED
UPDATED
ADVISORY IDCVE-2026-12064
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
CVSS SCORE
N/AlowUbuntu
CREATED
UPDATED
ADVISORY IDCVE-2026-12064
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
CVSS SCORE
N/AlowChainguard
CREATED
UPDATED
ADVISORY ID
CGA-g64q-pg37-hx53
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
Photon
CREATED
UPDATED
ADVISORY ID
CVE-2026-12064
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
CVSS SCORE
7.5highminimos
CREATED
UPDATED
ADVISORY ID
MINI-57vg-25pp-5hq8
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
minimos
CREATED
UPDATED
ADVISORY ID
MINI-7qgx-477r-f5v8
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-