SUSE CVE-2026-54369

acl before version 2.4.0 contains a symlink traversal vulnerability in the libacl pathname-based functions aclgetfile, aclsetfile, aclextendedfile, and acldeletedeffile that allows local attackers to escalate privileges by replacing any pathname component with a symbolic link. Attackers who contr...

SUSE CVE-2026-64139

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...

CVE-2026-64139

A flaw was found in the ksmbd kernel SMB daemon component of the Linux kernel. A malicious or specially crafted file with a large number of POSIX Access Control List ACL entries can trigger a memory leak in the setposixaclentriesdacl function. This occurs when the accumulated DACL size overflows,...

Linux Distros Unpatched Vulnerability : CVE-2026-15812

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in the internal Access Control List ACL subsystem of kronosnet Version affected: = 1.34. When the framework is explicitly configured t...

ALSA-2026:42736 Important: acl security update

Access Control Lists ACLs are used to define fine-grained discretionary access rights for files and directories. The acl packages contain the getfacl and setfacl utilities needed for manipulating access control lists. Security Fixes: acl: Symlink traversal privilege escalation via libacl function...

Oracle Linux 9 : acl (ELSA-2026-42736)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-42736 advisory. 2.4.0-1 - rebase to 2.4.0 to fix the following CVEs: - CVE-2026-54369 - Symlink traversal privilege escalation via libacl functions RHEL-186111 -...

CVE-2026-53397

A flaw was found in the Linux kernel's Network File System Daemon nfsd. This vulnerability occurs during the processing of Access Control List ACL set operations. If a specific decode step fails, a memory leak of a posixacl object occurs. This can lead to resource exhaustion over time, potentiall...

CVE-2026-53396

A flaw was found in the Linux kernel's Network File System NFS daemon nfsd within the nfsd4createfile function. This vulnerability allows a remote attacker to cause a denial of service DoS by repeatedly triggering a memory leak of posixacl allocations. The leak occurs when a client attempts to...

nfsd: fix posix_acl leak on SETACL decode failure

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Amazon Linux 2023 : acl, libacl, libacl-devel (ALAS2023-2026-1986)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1986 advisory. A flaw was found in the acl component, specifically within its libacl pathname-based functions. A local attacker could exploit this vulnerability by using a symbolic link to replace a pathname...

Linux Distros Unpatched Vulnerability : CVE-2026-64139

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 ksmbd:...

Important: acl

Issue Overview: A flaw was found in the acl component, specifically within its libacl pathname-based functions. A local attacker could exploit this vulnerability by using a symbolic link to replace a pathname component. This could allow the attacker to redirect access control list ACL read or wri...

OPENSUSE-SU-2026:11312-1 acl-2.4.0-1.1 on GA media

These are all security issues fixed in the acl-2.4.0-1.1 package on the GA media of openSUSE Tumbleweed...

Linux Distros Unpatched Vulnerability : CVE-2026-53396

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in...

SUSE CVE-2026-53396

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently discarded. When the NFSv4-to-POSIX ACL conversion fails e.g., -EINVAL f...

SUSE CVE-2026-53397

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posixacl leak on SETACL decode failure nfsaclsvcdecodesetaclargs and nfs3svcdecodesetaclargs each call nfsstreamdecodeacl twice, first for NFSACL and then for NFSDFACL. Each successful call transfers ownership of a...

SUSE CVE-2026-63814

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate ACL entry sizes in f2fsaclfromdisk f2fsaclcount only validates the aggregate ACL xattr length. A malformed ACL can still place ACLUSER or ACLGROUP in a slot that only contains struct f2fsaclentryshort bytes, and...

CVE-2026-64138

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smbvalidatentsdsid helper to safely validate Owner SID and Group SID inside the NT Security Descriptor smbntsd retrieved from the parent directory...

CVE-2026-64139 ksmbd: fix SID memory leak in set_posix_acl_entries_dacl() on overflow

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...

EUVD-2026-45824

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...