CVE-2023-45821
Incorrect Docker Hub registry check in Artifact Hub
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix. Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it. https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose. This issue has been resolved in version 1.16.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Incorrect Docker Hub registry check in Artifact Hub
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix. Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it. https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose. This issue has been resolved in version 1.16.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2023-45821- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
EUVDEUVD-2023-2736
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix. Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it. https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose. This issue has been resolved in version 1.16.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
EUVD-2023-2736- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-g6pq-x539-7w4j
Artifact Hub has Incorrect Docker Hub registry check
Impact
During a security audit of Artifact Hub's code base, a security researcher at OffSec identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix.
Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it.
https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose.
Patches
This issue has been resolved in version 1.16.0.
- Record
GHSA-g6pq-x539-7w4j- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
NVD
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix. Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it. https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose. This issue has been resolved in version 1.16.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2023-45821- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
OSV
Incorrect Docker Hub registry check in Artifact Hub
Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix. Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it. https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose. This issue has been resolved in version 1.16.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
- Record
CVE-2023-45821- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
OSVGHSA-g6pq-x539-7w4j
Artifact Hub has Incorrect Docker Hub registry check
Impact
During a security audit of Artifact Hub's code base, a security researcher at OffSec identified a bug in which the registryIsDockerHub function was only checking that the registry domain had the docker.io suffix.
Artifact Hub allows providing some Docker credentials that are used to increase the rate limit applied when interacting with the Docker Hub registry API to read publicly available content. Due to the incorrect check described above, it'd be possible to hijack those credentials by purchasing a domain which ends with docker.io and deploying a fake OCI registry on it.
https://artifacthub.io/ uses some credentials that only have permissions to read public content available in the Docker Hub. However, even though credentials for private repositories (disabled on artifacthub.io) are handled in a different way, other Artifact Hub deployments could have been using them for a different purpose.
Patches
This issue has been resolved in version 1.16.0.
- Record
GHSA-g6pq-x539-7w4j- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L - Weakness
- CWE-494
- Updated
- 2026-11-02
OSVGO-2023-2135 No score
Artifact Hub has Incorrect Docker Hub registry check in github.com/artifacthub/hub
Artifact Hub has Incorrect Docker Hub registry check in github.com/artifacthub/hub
- Record
GO-2023-2135- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/artifacthub/hubGo |
before 1.16.0 | 1.16.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-45821 is a medium vulnerability (CVSS 5.4) in Artifacthub Hub, published October 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. Fixed in github.com/artifacthub/hub 1.16.0.
References
github.com/artifacthub/hub/security/advisories/GHSA-g6pq-x539-7w4j
artifacthub.io/packages/helm/artifact-hub/artifact-hub?modal=changelog&version=1.16.0
nvd.nist.gov/vuln/detail/CVE-2023-45821