{"id":"CVE-2019-18837","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-18837","generatedAt":"2026-10-28T06:49:21.031Z","title":"An issue was discovered in crun before 0.10.5.","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.","published":"2019-11-13T20:15:11.000Z","lastModified":"2026-06-17T02:25:26.000Z","status":"Modified","sourceIdentifier":"trellixpsirt@trellix.com","cvss":{"version":"3.1","score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-59"],"affected":["crun project/crun","fedoraproject/fedora"],"epss":{"score":0.01418,"percentile":0.72645,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/containers/crun/pull/173","source":"trellixpsirt@trellix.com"},{"url":"https://github.com/containers/crun/releases/tag/0.10.5","source":"trellixpsirt@trellix.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/","source":"trellixpsirt@trellix.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/","source":"trellixpsirt@trellix.com"},{"url":"https://github.com/containers/crun/pull/173","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/containers/crun/releases/tag/0.10.5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DTA5SJUAKQUK6HRY2CZVJUIZP5BO3EOG/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITB2UNEGHXZUR3ATYHWPSK5LJB36N7AP/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-18837","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}