{"id":"CVE-2025-8766","title":"A container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core images","summary":"A container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an atta…","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-276","CWE-276"],"vendor":"redhat","product":"openshift_data_foundation","affected":["openshift_data_foundation = 4.0"],"published":"2026-03-13","updated":"2026-07-09","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-8766","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:37387","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-8766","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2387265","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-8766","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2387265","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-8766.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"tags":["nvd"],"epss":0.00165,"epssPercentile":0.06169,"ingestedAt":"2026-07-10T01:55:22.958Z","slug":"CVE-2025-8766","body":"## Overview\n\nA container privilege escalation flaw was found in certain Multi-Cloud Object Gateway Core images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container\n\n## Affected\n\n- `openshift_data_foundation = 4.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":35.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}