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Docker CLI leaks private registry credentials to registry-1.docker.io

Type: advisorySources: OSV

Docker CLI is the command line interface for the docker container runtime. A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. For users unable to update ensure that any configured credsStore or credHelpers entries in the configuration file reference an installed credential helper that is executable and on the PATH.

Products
docker-cli
Affected versions
Not specified
Fixed versions
20.10.9
CVEs
CVE-2021-41092
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 19:49 UTC · Revision 1

Source evidence

Docker CLI leaks private registry credentials to registry-1.docker.io

core-osv · Original source

Published 6 Feb 2026, 09:41 UTC

Docker CLI is the command line interface for the docker container runtime. A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. For users unable to update ensure that any configured credsStore or credHelpers entries in the configuration file reference an installed credential helper that is executable and on the PATH.

osv:BIT-docker-cli-2021-41092

docker-cli

Fixed versions: 20.10.9

Complete source record
{
  "id": "457392816dfba456ece7532caeff34f54dcef02e9af5ae075bb51f2edc4a0bfb",
  "url": "https://osv.dev/vulnerability/BIT-docker-cli-2021-41092",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Docker CLI leaks private registry credentials to registry-1.docker.io",
    "summary": "Docker CLI is the command line interface for the docker container runtime. A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. For users unable to update ensure that any configured credsStore or credHelpers entries in the configuration file reference an installed credential helper that is executable and on the PATH.",
    "evidence": "osv:BIT-docker-cli-2021-41092",
    "products": [
      {
        "name": {
          "value": "docker-cli",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "20.10.9",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-docker-cli-2021-41092",
      "aliases": [
        "BIT-docker-cli-2021-41092",
        "CVE-2021-41092",
        "GHSA-99pg-grm5-qq3v",
        "GO-2024-2912"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "20.10.9"
                }
              ]
            }
          ],
          "package": {
            "name": "docker-cli",
            "purl": "pkg:bitnami/docker-cli",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/docker-cli/BIT-docker-cli-2021-41092.json"
          }
        }
      ],
      "modified": "2026-10-16T09:45:04.791437899Z",
      "provider": "osv",
      "references": [
        "https://github.com/docker/cli/commit/893e52cf4ba4b048d72e99748e0f86b2767c6c6b",
        "https://github.com/docker/cli/security/advisories/GHSA-99pg-grm5-qq3v",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/",
        "https://nvd.nist.gov/vuln/detail/CVE-2021-41092"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:docker:command_line_interface:*:*:*:*:*:*:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-41092",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 338137,
  "published_at": "2026-02-06T09:41:30.146+00:00"
}