{"cve":"CVE-2021-4024","nvd":{"published":"2021-12-23T20:15:12.210","modified":"2026-06-17T04:18:54.857","status":"Modified","description":"A flaw was found in podman. The `podman machine` function (used to create and manage Podman virtual machine containing a Podman process) spawns a `gvproxy` process on the host system. The `gvproxy` API is accessible on port 7777 on all IP addresses on the host. If that port is open on the host's firewall, an attacker can potentially use the `gvproxy` API to forward ports on the host to ports in the VM, making private services on the VM accessible to the network. This issue could be also used to interrupt the host's services by forwarding all ports to the VM.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","score":6.5},"cwes":["CWE-200","CWE-346"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=2026675%2C","https://github.com/containers/podman/releases/tag/v3.4.3","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QFFVJ6S3ZRMPDYB7KYAWEMDHXFZYQPU3/","https://bugzilla.redhat.com/show_bug.cgi?id=2026675%2C","https://github.com/containers/podman/releases/tag/v3.4.3"],"products":["fedoraproject:fedora","podman_project:podman","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-4024","score":0.01137,"percentile":0.66546,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-3cf2-x423-x582","url":"https://osv.dev/vulnerability/GHSA-3cf2-x423-x582","summary":"Exposure of Sensitive Information to an Unauthorized Actor and Origin Validation Error in podman","modified":"2024-08-21T14:56:49.001156Z","packages":[{"ecosystem":"Go","name":"github.com/containers/podman/v3","purl":"pkg:golang/github.com/containers/podman/v3","ranges":["<3.4.3"],"fixed":["3.4.3"]}]},{"id":"GO-2022-0281","url":"https://osv.dev/vulnerability/GO-2022-0281","summary":"Exposure of Sensitive Information to an Unauthorized Actor and Origin Validation Error in podman in github.com/containers/podman","modified":"2026-03-03T04:52:05.156909Z","packages":[{"ecosystem":"Go","name":"github.com/containers/podman","purl":"pkg:golang/github.com/containers/podman","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/containers/podman/v2","purl":"pkg:golang/github.com/containers/podman/v2","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/containers/podman/v3","purl":"pkg:golang/github.com/containers/podman/v3","ranges":["<3.4.3"],"fixed":["3.4.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}