EUVD-2026-55481

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate numsubauth when copying ACE in setntacldacl setntacldacl copies each ACE from the attacker-controlled stored security descriptor verbatim into the response DACL without checking sid.numsubauth. The ACE bytes...

EUVD-2026-55480

In the Linux kernel, the following vulnerability has been resolved: ksmbd: restore DACL size on checkaddoverflow to avoid malformed ACL checkaddoverflow unconditionally writes the truncated sum into d even on overflow, per its contract in include/linux/overflow.h. The four checkaddoverflow guards...

EUVD-2026-55479

In the Linux kernel, the following vulnerability has been resolved: ksmbd: bound DACL dedup walk to copied ACEs setntacldacl can stop copying ACEs before consuming the full input DACL when size accounting overflows. When that happens, numaces reflects only the ACEs that were actually copied into...

EUVD-2026-55478

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate ACE size against SID sub-authorities setntacldacl validates sid.numsubauth before copying an ACE, but does not verify that the declared ACE size contains all sub-authorities described by that field. An undersized...

Critical Photon OS Security Update - PHSA-2026-5.0-92-0946

Updates of 'acl', 'perl' packages of Photon OS have been released...

CVE-2026-71192

In OpenStack Swift through 2.38.0, the S3API middleware does not sanitize Swift-native control headers X-Copy-From, X-Copy-From-Account from S3 API requests when s3acl=true. An attacker can inject these headers into a signed PUT request targeting their own bucket, causing Swift to perform a...

Updated acl attr packages fix security vulnerabilities

The updated acl and attr packages fix security issues...

Authorization Bypass

goshs is vulnerable to Authorization Bypass. The vulnerability is due to inconsistent path handling, where files are opened using a cleaned path while authorization checks are performed against the raw req.URL.Path. This allows an attacker to append a trailing slash to bypass .goshs ACL-file...

Security update for kronosnet (moderate)

openSUSE Security Update: Security update for kronosnet Announcement ID: openSUSE-SU-2026:0268-1 Rating: moderate References: 1257258 1271923 1271924 1271925 Cross-References: CVE-2026-15811 CVE-2026-15812 CVE-2026-15813 CVSS scores: CVE-2026-15811 SUSE: 5.8...

CVE-2026-58222

A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller AD DC. When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search ...

CVE-2026-58159

Apache Traffic Server can bypass IP access controls on UDS listeners and through ACL matching errors. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix...

EUVD-2026-50083

goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/handler.go sendFile handler opened files using a cleaned path but derived the authorization filename from raw req.URL.Path, so a trailing slash could bypass .goshs ACL-file protection...

CVE-2026-61487

Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated low-privilege user can bypass a per-destination write ACL by sending to an ActiveMQ temporary composite destination whose physical name is a comma-separated composite of real...

PT-2026-65626

Name of the Vulnerable Software and Affected Versions goshs versions prior to 2.1.5 Description The sendFile function in the httpserver/handler.go file incorrectly derives the authorization filename from the raw req.URL.Path while opening the file using a cleaned path. This discrepancy allows an...

CVE-2026-64388

Summary: CVE-2026-64388 affects the Linux kernel SMB client when using SMB3 POSIX Extensions, where chown/chgrp updates could be ignored unless CIFS_MOUNT_CIFS_ACL or CIFS_MOUNT_MODE_FROM_SID are also set. The root cause is a missing check for posix_extensions in cifs_setattr_nounix() during UID/...

EUVD-2026-48932

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership chown and group chgrp modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFSMOUNTCIFSACL or CIFSMOUNTMODEFROMSID were also explicitly...

PT-2026-64609

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Ownership and group modifications were ignored when mounting with SMB3 POSIX Extensions, unless CIFS MOUNT CIFS ACL or CIFS MOUNT MODE FROM SID were explicitly set. The issue occurs with...

RHSA-2026:43420 Red Hat Security Advisory: acl security update

Bulletin has no description...

RLSA-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...

acl: Symlink traversal privilege escalation via libacl functions

A flaw was found in the acl package, 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 write operations to...