CVE-2026-92543

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Source
https://cve.org/CVERecord?id=CVE-2026-92543
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92543.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92543
Aliases
  • GHSA-7cfq-22r6-qp73
Downstream
Published
2026-10-07T16:44:21Z
Modified
2026-10-08T02:52:44Z
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 CVSS Calculator
Summary
Docker Engine insecure-registry fallback via malicious DNS responses
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.

Database specific 
{
    "cna_assigner": "Docker",
    "cwe_ids": [
        "CWE-295",
        "CWE-319"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92543.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "v2.0.0-beta.25"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/moby/moby

Affected ranges

Type
GIT
Repo
https://github.com/moby/moby
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8af9fe3a36bab3e039862a2ab1cef1880c9b4d03
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "29.8.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.0.3
api/v1.*
api/v1.52.0
api/v1.52.0-alpha.0
api/v1.52.0-alpha.1
api/v1.52.0-beta.0
api/v1.52.0-beta.1
api/v1.52.0-beta.2
api/v1.52.0-beta.3
api/v1.52.0-beta.4
api/v1.52.0-rc.1
client/v0.*
client/v0.1.0
client/v0.1.0-alpha.0
client/v0.1.0-beta.0
client/v0.1.0-beta.1
client/v0.1.0-beta.2
client/v0.1.0-beta.3
client/v0.1.0-rc.1
docker-v29.*
docker-v29.0.0
docker-v29.0.0-rc.1
docker-v29.0.0-rc.2
docker-v29.0.0-rc.3
docker-v29.0.1
docker-v29.0.2
docker-v29.0.3
docker-v29.0.4
docker-v29.1.3
docker-v29.1.4
docker-v29.1.5
docker-v29.3.1
docker-v29.4.2
docker-v29.4.3
docker-v29.6.1
docker-v29.6.2
docs-v1.*
docs-v1.12.0-rc4-2016-07-15
upstream/0.*
upstream/0.1.2
upstream/0.1.3
v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.2.0
v0.2.1
v0.2.2
v0.3.0
v0.3.1
v0.3.2
v0.4.1
v0.4.2
v0.4.4
v0.4.5
v0.4.7
v0.5.0
v0.6.5
v0.7.0
v0.7.1
v0.7.2
v18.*
v18.06.0-ce-rc1
v18.09.0-ce-tp0
v19.*
v19.03.0-beta1
v19.03.0-beta2
v19.03.0-beta3
v2.*
v2.0.0-beta.0
v2.0.0-beta.1
v2.0.0-beta.2
v2.0.0-beta.3
v2.0.0-beta.8
v20.*
v20.10.0
v20.10.0-beta1
v20.10.0-rc1
v20.10.0-rc2
v20.10.1
v20.10.2
v22.*
v22.06.0-beta.0
v24.*
v24.0.0-beta.1
v24.0.0-beta.2
v24.0.0-rc.1
v24.0.0-rc.2
v25.*
v25.0.0
v25.0.0-beta.1
v25.0.0-beta.2
v25.0.0-beta.3
v25.0.0-rc.1
v25.0.0-rc.2
v25.0.0-rc.3
v26.*
v26.0.0
v26.0.0-rc1
v26.0.0-rc2
v26.0.0-rc3
v26.1.0
v27.*
v27.0.0-rc.1
v27.0.0-rc.2
v27.0.1
v27.0.1-rc.1
v28.*
v28.0.0
v28.0.0-rc.1
v28.0.0-rc.2
v28.0.0-rc.3
v28.0.1
v28.0.2
v28.0.3
v28.0.4
v28.1.0
v28.1.0-rc.1
v28.1.0-rc.2
v28.1.1
v28.2.0
v28.2.0-rc.1
v28.2.0-rc.2
v28.2.1
v28.2.2

Database specific

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