{"id":"CVE-2026-1933","summary":"Samba: missing access check on reparse point operations","details":"A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.","modified":"2026-06-11T16:14:06.537601700Z","published":"2026-05-27T12:28:44.600Z","related":["ALSA-2026:22963","ALSA-2026:25049","SUSE-SU-2026:2076-1","SUSE-SU-2026:22045-1","openSUSE-SU-2026:10884-1","openSUSE-SU-2026:20905-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1933.json","cna_assigner":"redhat","cwe_ids":["CWE-284"]},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22963"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:25049"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-1933"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1933.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1933"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2447317"},{"type":"REPORT","url":"https://bugzilla.samba.org/show_bug.cgi?id=15992"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"a6fb418be7adccdd583a3b489b58023cfdd392ef"},{"fixed":"f312bf9ec12edaddb7693e5759ef71c1b904b2fb"}],"database_specific":{"extracted_events":[{"introduced":"4.1.0"},{"fixed":"4.2.2"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-1933.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H"}]}