{"id":"CVE-2019-18837","aliases":["BELL-CVE-2019-18837","EUVD-2019-8538","GHSA-992m-xc3g-r7rj"],"status":"published","title":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check...","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01418,"percentile":0.73138,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2019-11-13T20:01:16Z","modified":"2026-10-20T10:50:54Z","products":[{"vendor":"containers","product":"crun"},{"vendor":"crun","product":"crun"},{"vendor":"crun_project","product":"crun"},{"vendor":"fedoraproject","product":"fedora"}],"references":[{"url":"https://github.com/containers/crun/pull/173","tags":["x_refsource_MISC","x_transferred","fix"]},{"url":"https://github.com/containers/crun/releases/tag/0.10.5","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18837"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/"},{"url":"https://github.com/advisories/GHSA-992m-xc3g-r7rj"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2019-18837","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-18837","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","status":"published","published":"2019-11-13T20:01:16Z","modified":"2024-08-05T02:02:39.524Z","updated_at":"2026-11-02T14:32:23.803059Z"}],"euvd":[{"id":"EUVD-2019-8538","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","status":"published","published":"2019-11-13T20:01:16Z","modified":"2024-08-05T02:02:39Z","updated_at":"2026-11-03T02:40:27.303586Z"}],"ghsa":[{"id":"GHSA-992m-xc3g-r7rj","title":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check...","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","status":"published","published":"2022-05-24T17:00:48Z","modified":"2023-01-28T05:08:12Z","updated_at":"2026-11-02T14:44:36.474417Z"}],"nvd":[{"id":"CVE-2019-18837","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","status":"published","published":"2019-11-13T20:15:10.94Z","modified":"2026-06-17T02:25:26.453Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:05:35.052973Z"}],"osv":[{"id":"BELL-CVE-2019-18837","title":"CVE-2019-18837 does not affect BellSoft software","status":"withdrawn","published":"2019-11-13T20:15:00Z","modified":"2026-01-26T09:49:17.345909Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:28:15.340685Z"},{"id":"CVE-2019-18837","description":"An issue was discovered in crun before 0.10.5. With a crafted image, it doesn't correctly check whether a target is a symlink, resulting in access to files outside of the container. This occurs in libcrun/linux.c and libcrun/chroot_realpath.c.","status":"published","published":"2019-11-13T20:15:10.94Z","modified":"2026-10-20T10:50:54.352443368Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:11.673963Z"}]}}