OESA-2026-3411

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3411
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3411.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3411
Upstream
  • CVE-2026-15779
Published
2026-08-20T09:54:49Z
Modified
2026-08-20T10:15:06.398270925Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
Summary
samba security update
Details

Samba is a suite of programs for Linux and Unix to interoperate with Windows.

Security Fix(es):

A flaw was found in samba's pamwinbind. When mkhomedir is enabled, pamwinbind chowns the target account's home directory without validating the path is not a critical system directory such as /. On affected systems, accounts with / as their home directory (a common default for system accounts) can have this triggered not only by root, but by a non-root user holding a narrow sudo delegation to run commands as that account, causing ownership of / to change and resulting in severe denial of service (SSH, sudo, and package-manager failures). The change does not grant write access to / (which ships with restrictive 0555 permissions on RHEL), so the impact is availability loss rather than further privilege escalation.(CVE-2026-15779)

Database specific 
{
    "severity": "Medium"
}
References

Affected packages

openEuler:24.03-LTS-SP3 / samba

Package

Name
samba
Purl
pkg:rpm/openEuler/samba&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.19.3-11.oe2403sp3

Ecosystem specific 

{
    "x86_64": [
        "ctdb-4.19.3-11.oe2403sp3.x86_64.rpm",
        "libsmbclient-4.19.3-11.oe2403sp3.x86_64.rpm",
        "libsmbclient-devel-4.19.3-11.oe2403sp3.x86_64.rpm",
        "libwbclient-4.19.3-11.oe2403sp3.x86_64.rpm",
        "libwbclient-devel-4.19.3-11.oe2403sp3.x86_64.rpm",
        "python3-samba-4.19.3-11.oe2403sp3.x86_64.rpm",
        "python3-samba-dc-4.19.3-11.oe2403sp3.x86_64.rpm",
        "python3-samba-test-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-client-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-client-libs-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-common-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-common-tools-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-dc-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-dc-bind-dlz-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-dc-libs-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-dc-provision-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-debuginfo-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-debugsource-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-devel-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-help-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-krb5-printing-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-libs-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-test-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-tools-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-usershares-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-vfs-glusterfs-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-winbind-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-winbind-clients-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-winbind-krb5-locator-4.19.3-11.oe2403sp3.x86_64.rpm",
        "samba-winbind-modules-4.19.3-11.oe2403sp3.x86_64.rpm"
    ],
    "aarch64": [
        "ctdb-4.19.3-11.oe2403sp3.aarch64.rpm",
        "libsmbclient-4.19.3-11.oe2403sp3.aarch64.rpm",
        "libsmbclient-devel-4.19.3-11.oe2403sp3.aarch64.rpm",
        "libwbclient-4.19.3-11.oe2403sp3.aarch64.rpm",
        "libwbclient-devel-4.19.3-11.oe2403sp3.aarch64.rpm",
        "python3-samba-4.19.3-11.oe2403sp3.aarch64.rpm",
        "python3-samba-dc-4.19.3-11.oe2403sp3.aarch64.rpm",
        "python3-samba-test-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-client-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-client-libs-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-common-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-common-tools-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-dc-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-dc-bind-dlz-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-dc-libs-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-dc-provision-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-debuginfo-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-debugsource-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-devel-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-help-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-krb5-printing-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-libs-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-test-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-tools-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-usershares-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-winbind-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-winbind-clients-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-winbind-krb5-locator-4.19.3-11.oe2403sp3.aarch64.rpm",
        "samba-winbind-modules-4.19.3-11.oe2403sp3.aarch64.rpm"
    ],
    "noarch": [
        "samba-pidl-4.19.3-11.oe2403sp3.noarch.rpm"
    ],
    "src": [
        "samba-4.19.3-11.oe2403sp3.src.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3411.json"