DEBIAN-CVE-2026-12064

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-12064
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12064.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-12064
Upstream
Published
2026-07-03T07:16:24Z
Modified
2026-09-16T09:00:08Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.88.1-10
7.88.1-10+deb12u1~bpo11+1
7.88.1-10+deb12u1
7.88.1-10+deb12u2
7.88.1-10+deb12u3~bpo11+1
7.88.1-10+deb12u3
7.88.1-10+deb12u4
7.88.1-10+deb12u5~bpo11+1
7.88.1-10+deb12u5
7.88.1-10+deb12u6~bpo11+1
7.88.1-10+deb12u6
7.88.1-10+deb12u7
7.88.1-10+deb12u8
7.88.1-10+deb12u9
7.88.1-10+deb12u11
7.88.1-10+deb12u12
7.88.1-10+deb12u13
7.88.1-10+deb12u14
7.88.1-10+deb12u15
7.88.1-11
8.*
8.0.1-1~exp1
8.2.1-1
8.2.1-2~bpo12+1
8.2.1-2
8.3.0-1
8.3.0-2~bpo12+1
8.3.0-2~exp1
8.3.0-2
8.3.0-3
8.4.0-1
8.4.0-2~bpo12+1
8.4.0-2
8.5.0-1
8.5.0-1+exp1
8.5.0-2~bpo12+1
8.5.0-2
8.5.0-2+exp1
8.6.0-1
8.6.0-1.1
8.6.0-2
8.6.0-3
8.6.0-3.1~exp1
8.6.0-3.1~exp2
8.6.0-3.1
8.6.0-3.2
8.6.0-4
8.7.1-1
8.7.1-1+exp1
8.7.1-2
8.7.1-3
8.7.1-4
8.7.1-5~bpo12+1
8.7.1-5
8.7.1-5+exp1
8.8.0-1~bpo12+1
8.8.0-1
8.8.0-1+exp1
8.8.0-1+exp2
8.8.0-2
8.8.0-3
8.8.0-4
8.9.0-1
8.9.0-2
8.9.0-3
8.9.1-1
8.9.1-2~bpo12+1
8.9.1-2
8.10.0-1
8.10.0-2
8.10.1-1~bpo12+1
8.10.1-1
8.10.1-2
8.11.0-1
8.11.1-1~bpo12+1
8.11.1-1
8.12.0+git20250209.89ed161+ds-1~bpo12+1
8.12.0+git20250209.89ed161+ds-1
8.12.1-1
8.12.1-2~bpo12+1
8.12.1-2
8.12.1-3~bpo12+1
8.12.1-3
8.13.0~rc-1~exp1
8.13.0~rc-1~exp2
8.13.0~rc2-1
8.13.0~rc2-2
8.13.0~rc3-1
8.13.0~rc3-1+exp1
8.13.0-1
8.13.0-1+exp1
8.13.0-2
8.13.0-2+exp1
8.13.0-3
8.13.0-4
8.13.0-4+exp1
8.13.0-5~bpo12+1
8.13.0-5
8.13.0-5+exp1
8.14.0~rc1-1+exp1
8.14.0~rc2-1+exp1
8.14.0~rc3-1+exp1
8.14.0-1
8.14.0-1+exp1
8.14.1-1~bpo12+1
8.14.1-1
8.14.1-2~bpo12+1
8.14.1-2
8.14.1-2+exp1
8.15.0~rc1-1exp1
8.15.0~rc2-1~exp1
8.15.0~rc3-1~exp1
8.15.0-1~bpo13+1
8.15.0-1~exp1
8.15.0-1
8.16.0~rc1-1~exp1
8.16.0~rc2-1
8.16.0~rc2-2
8.16.0~rc3-1
8.16.0-1~bpo13+1
8.16.0-1
8.16.0-1+exp1
8.16.0-2
8.16.0-3
8.16.0-4~bpo13+1
8.16.0-4
8.17.0~rc1-1~exp1
8.17.0~rc2-1
8.17.0~rc3-1
8.17.0-1
8.17.0-2
8.17.0-3
8.18.0~rc1-1+exp1
8.18.0~rc2-1
8.18.0~rc3-1
8.18.0-1~bpo13+1
8.18.0-1
8.18.0-2
8.19.0~rc1-1~exp1
8.19.0~rc2-1
8.19.0~rc2-2
8.19.0~rc3-1
8.19.0-1~bpo13+1
8.19.0-1
8.19.0-1+exp1
8.19.0-2
8.19.0-3
8.19.0-3+exp1
8.19.0-3+exp2
8.20.0~rc1-1+exp1
8.20.0~rc1-1+exp2
8.20.0~rc1-1+exp3
8.20.0~rc2-1
8.20.0~rc2-1+exp1
8.20.0~rc3-1
8.20.0~rc3-1+exp1
8.20.0-1
8.20.0-1+exp
8.20.0-2~bpo13+1
8.20.0-2
8.20.0-2+exp1
8.20.0-3
8.20.0-4
8.20.0-5~bpo13+1
8.20.0-5
8.21.0~rc1-1+exp1
8.21.0~rc2-1
8.21.0~rc2-1+exp1
8.21.0~rc3-1
8.21.0~rc3-1+exp1
8.21.0-1
8.21.0-1+exp1
8.21.0-2~bpo13+1
8.21.0-2
8.21.0-2+exp1
8.22.0~rc2-1
8.22.0~rc2-2
8.22.0~rc3-1
8.22.0~rc3-1+exp1
8.22.0-1
8.22.0-1+exp1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12064.json"

Debian:13 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.14.1-2
8.14.1-2+deb13u1
8.14.1-2+deb13u2~bpo13+1
8.14.1-2+deb13u2
8.14.1-2+deb13u3
8.14.1-2+deb13u4
8.14.1-2+deb13u5
8.14.1-2+exp1
8.15.0~rc1-1exp1
8.15.0~rc2-1~exp1
8.15.0~rc3-1~exp1
8.15.0-1~bpo13+1
8.15.0-1~exp1
8.15.0-1
8.16.0~rc1-1~exp1
8.16.0~rc2-1
8.16.0~rc2-2
8.16.0~rc3-1
8.16.0-1~bpo13+1
8.16.0-1
8.16.0-1+exp1
8.16.0-2
8.16.0-3
8.16.0-4~bpo13+1
8.16.0-4
8.17.0~rc1-1~exp1
8.17.0~rc2-1
8.17.0~rc3-1
8.17.0-1
8.17.0-2
8.17.0-3
8.18.0~rc1-1+exp1
8.18.0~rc2-1
8.18.0~rc3-1
8.18.0-1~bpo13+1
8.18.0-1
8.18.0-2
8.19.0~rc1-1~exp1
8.19.0~rc2-1
8.19.0~rc2-2
8.19.0~rc3-1
8.19.0-1~bpo13+1
8.19.0-1
8.19.0-1+exp1
8.19.0-2
8.19.0-3
8.19.0-3+exp1
8.19.0-3+exp2
8.20.0~rc1-1+exp1
8.20.0~rc1-1+exp2
8.20.0~rc1-1+exp3
8.20.0~rc2-1
8.20.0~rc2-1+exp1
8.20.0~rc3-1
8.20.0~rc3-1+exp1
8.20.0-1
8.20.0-1+exp
8.20.0-2~bpo13+1
8.20.0-2
8.20.0-2+exp1
8.20.0-3
8.20.0-4
8.20.0-5~bpo13+1
8.20.0-5
8.21.0~rc1-1+exp1
8.21.0~rc2-1
8.21.0~rc2-1+exp1
8.21.0~rc3-1
8.21.0~rc3-1+exp1
8.21.0-1
8.21.0-1+exp1
8.21.0-2~bpo13+1
8.21.0-2
8.21.0-2+exp1
8.22.0~rc2-1
8.22.0~rc2-2
8.22.0~rc3-1
8.22.0~rc3-1+exp1
8.22.0-1
8.22.0-1+exp1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12064.json"

Debian:14 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.21.0~rc3-1

Affected versions

8.*
8.14.1-2
8.14.1-2+exp1
8.15.0~rc1-1exp1
8.15.0~rc2-1~exp1
8.15.0~rc3-1~exp1
8.15.0-1~bpo13+1
8.15.0-1~exp1
8.15.0-1
8.16.0~rc1-1~exp1
8.16.0~rc2-1
8.16.0~rc2-2
8.16.0~rc3-1
8.16.0-1~bpo13+1
8.16.0-1
8.16.0-1+exp1
8.16.0-2
8.16.0-3
8.16.0-4~bpo13+1
8.16.0-4
8.17.0~rc1-1~exp1
8.17.0~rc2-1
8.17.0~rc3-1
8.17.0-1
8.17.0-2
8.17.0-3
8.18.0~rc1-1+exp1
8.18.0~rc2-1
8.18.0~rc3-1
8.18.0-1~bpo13+1
8.18.0-1
8.18.0-2
8.19.0~rc1-1~exp1
8.19.0~rc2-1
8.19.0~rc2-2
8.19.0~rc3-1
8.19.0-1~bpo13+1
8.19.0-1
8.19.0-1+exp1
8.19.0-2
8.19.0-3
8.19.0-3+exp1
8.19.0-3+exp2
8.20.0~rc1-1+exp1
8.20.0~rc1-1+exp2
8.20.0~rc1-1+exp3
8.20.0~rc2-1
8.20.0~rc2-1+exp1
8.20.0~rc3-1
8.20.0~rc3-1+exp1
8.20.0-1
8.20.0-1+exp
8.20.0-2~bpo13+1
8.20.0-2
8.20.0-2+exp1
8.20.0-3
8.20.0-4
8.20.0-5~bpo13+1
8.20.0-5
8.21.0~rc1-1+exp1
8.21.0~rc2-1
8.21.0~rc2-1+exp1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12064.json"