{"id":"CVE-2020-28914","aliases":["EUVD-2020-21305","GHSA-6w62-mvw6-xggx","OESA-2021-1084"],"status":"published","title":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a...","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00372,"percentile":0.31554,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-732"],"published":"2020-11-17T21:23:33Z","modified":"2026-10-20T10:53:10Z","fixes":[{"ecosystem":"openEuler:20.03-LTS","package":"kata-containers","fixed_in":["v1.11.1-8.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"kata-containers","fixed_in":["v1.11.1-8.oe1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"openEuler:20.03-LTS","package":"kata-containers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"v1.11.1-8.oe1"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP1","package":"kata-containers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"v1.11.1-8.oe1"}]}]}],"products":[{"vendor":"katacontainers","product":"kata-containers"}],"references":[{"url":"https://github.com/kata-containers/kata-containers/pull/1062","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/kata-containers/runtime/pull/3042","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/kata-containers/runtime/pull/3051","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://github.com/kata-containers/runtime/releases/tag/1.12.0","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://github.com/kata-containers/runtime/releases/tag/1.11.5","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28914","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6w62-mvw6-xggx"},{"url":"https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1084","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-28914","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","status":"published","published":"2020-11-17T21:23:33Z","modified":"2024-08-04T16:41:00.143Z","updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-21305","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","status":"published","published":"2020-11-17T21:23:33Z","modified":"2024-08-04T16:41:00Z","updated_at":"2026-11-03T03:07:08.475588Z"}],"ghsa":[{"id":"GHSA-6w62-mvw6-xggx","title":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a...","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","status":"published","published":"2022-05-24T17:34:33Z","modified":"2023-01-29T05:04:49Z","cwes":["CWE-732"],"updated_at":"2026-11-02T14:45:38.830072Z"}],"nvd":[{"id":"CVE-2020-28914","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","status":"published","published":"2020-11-17T22:15:12.387Z","modified":"2026-06-17T03:10:49.083Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:25.394006Z"}],"osv":[{"id":"CVE-2020-28914","description":"An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.","status":"published","published":"2020-11-17T22:15:12.387Z","modified":"2026-10-20T10:53:10.746711678Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.612899Z"},{"id":"OESA-2021-1084","title":"kata-containers security update","description":"This is core component of Kata Container, to make it work, you need a isulad/docker engine.\r\n\r\nSecurity Fix(es):\r\n\r\nAn improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.(CVE-2020-28914)","status":"published","published":"2021-03-05T11:04:19Z","modified":"2026-08-18T01:15:20.305327863Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:38.987987Z"}]}}