DEBIAN-CVE-2026-92543

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-92543
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92543.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-92543
Upstream
Published
2026-10-07T17:17:02Z
Modified
2026-10-08T05:00:10Z
Severity
  • 7.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Docker Engine classifies a registry hostname as insecure using an any-match DNS check. loadInsecureRegistries() injects 127.0.0.0/8 and ::1/128 as insecure CIDRs by default. isCIDRMatch resolves all of the hostname's addresses and returns true if a single address is in the insecure CIDR list. Because the transport re-dials the hostname rather than the CIDR-matching address, a DNS answer set of one loopback IP plus a non-loopback attacker IP disables certificate verification and enables HTTP fallback for the registry connection.

References

Affected packages

Debian:12 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=bookworm

Affected ranges

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

Affected versions

20.*
20.10.24+dfsg1-1
20.10.24+dfsg1-1+deb12u1
20.10.25+dfsg1-1
20.10.25+dfsg1-2
20.10.25+dfsg1-3
20.10.25+dfsg1-4
26.*
26.1.4+dfsg1-1
26.1.4+dfsg1-2
26.1.4+dfsg1-3
26.1.4+dfsg1-4
26.1.4+dfsg1-5
26.1.4+dfsg1-6
26.1.4+dfsg1-7
26.1.4+dfsg1-8
26.1.4+dfsg1-9
26.1.4+dfsg2-1
26.1.4+dfsg3-1
26.1.5+dfsg1-1
26.1.5+dfsg1-2
26.1.5+dfsg1-3
26.1.5+dfsg1-4
26.1.5+dfsg1-5
26.1.5+dfsg1-6
26.1.5+dfsg1-7
26.1.5+dfsg1-8
26.1.5+dfsg1-9
26.1.5+dfsg1-10
27.*
27.5.1+dfsg1-1
27.5.1+dfsg1-2
27.5.1+dfsg2-1
27.5.1+dfsg3-1
27.5.1+dfsg3-2
27.5.1+dfsg3-3
27.5.1+dfsg3-4
27.5.1+dfsg3-5
27.5.1+dfsg3-6
27.5.1+dfsg4-1
27.5.1+dfsg4-2
28.*
28.5.2+dfsg1-1
28.5.2+dfsg2-1
28.5.2+dfsg3-1
28.5.2+dfsg3-2
28.5.2+dfsg4-1
28.5.2+dfsg4-2
28.5.2+dfsg4-3
28.5.2+dfsg4-4
28.5.2+dfsg4-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92543.json"

Debian:13 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=trixie

Affected ranges

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

Affected versions

26.*
26.1.5+dfsg1-9
26.1.5+dfsg1-9+deb13u1
26.1.5+dfsg1-10
27.*
27.5.1+dfsg1-1
27.5.1+dfsg1-2
27.5.1+dfsg2-1
27.5.1+dfsg3-1
27.5.1+dfsg3-2
27.5.1+dfsg3-3
27.5.1+dfsg3-4
27.5.1+dfsg3-5
27.5.1+dfsg3-6
27.5.1+dfsg4-1
27.5.1+dfsg4-2
28.*
28.5.2+dfsg1-1
28.5.2+dfsg2-1
28.5.2+dfsg3-1
28.5.2+dfsg3-2
28.5.2+dfsg4-1
28.5.2+dfsg4-2
28.5.2+dfsg4-3
28.5.2+dfsg4-4
28.5.2+dfsg4-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92543.json"

Debian:14 / docker.io

Package

Name
docker.io
Purl
pkg:deb/debian/docker.io?arch=source&distro=forky

Affected ranges

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

Affected versions

26.*
26.1.5+dfsg1-9
26.1.5+dfsg1-10
27.*
27.5.1+dfsg1-1
27.5.1+dfsg1-2
27.5.1+dfsg2-1
27.5.1+dfsg3-1
27.5.1+dfsg3-2
27.5.1+dfsg3-3
27.5.1+dfsg3-4
27.5.1+dfsg3-5
27.5.1+dfsg3-6
27.5.1+dfsg4-1
27.5.1+dfsg4-2
28.*
28.5.2+dfsg1-1
28.5.2+dfsg2-1
28.5.2+dfsg3-1
28.5.2+dfsg3-2
28.5.2+dfsg4-1
28.5.2+dfsg4-2
28.5.2+dfsg4-3
28.5.2+dfsg4-4
28.5.2+dfsg4-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92543.json"