CVE-2026-64138
- Source
- https://cve.org/CVERecord?id=CVE-2026-64138
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64138.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-64138
- Downstream
- Published
- 2026-07-19T15:40:31Z
- Modified
- 2026-08-20T03:30:55Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ksmbd: validate SID in parent security descriptor during ACL inheritance
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: validate SID in parent security descriptor during ACL inheritance
Introduce smb_validate_ntsd_sid() helper to safely validate Owner SID and Group SID inside the NT Security Descriptor (smb_ntsd) retrieved from the parent directory.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64138.json" }- References
-
- https://git.kernel.org/stable/c/18d8db24b0a5b7be4829238dd4022236df02d421
- https://git.kernel.org/stable/c/1c9d0646a9959752f11ca1080dc1ff26bd1756cb
- https://git.kernel.org/stable/c/69f030cf95488ae1186c72ac8c66fd279664ea7f
- https://git.kernel.org/stable/c/f0e5c9c663badc9982e6941322eef1cb17de0f11
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64138.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64138
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9Fixedf0e5c9c663badc9982e6941322eef1cb17de0f11Fixed18d8db24b0a5b7be4829238dd4022236df02d421Fixed1c9d0646a9959752f11ca1080dc1ff26bd1756cbFixed69f030cf95488ae1186c72ac8c66fd279664ea7f