Access Denied for ListBuckets/GetBuckets on S3-Compatible Repositories

Challenge When adding an S3-compatible object storage repository to Veeam Backup & Replication, or during regular use of an existing one, Access Denied events related to a ListBuckets/GetBuckets operation may appear in the object storage system's access logs. These issues occur even though the...

PT-2026-97969

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module regarding maximum allowed access checks. The DACL Discretionary Access Control List permission check fails to consider the Authenticated Users ACE...

PT-2026-104858

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix maximum allowed access checks The DACL permission check looks for an ACE matching the current user and falls back to the Everyone ACE. It does not consider an Authenticated Users ACE, even though an authenticated sessi...

BIT-KEYCLOAK-2026-9800 Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

Sign-In Error After Migrating Configuration From MFA-Enabled Server

Challenge After performing Configuration Restore using the Migration mode from a Configuration Backup created by a Veeam Backup & Replication server that had MFA enabled, login attempts using local accounts cause the Veeam Backup & Replication Console to display the error: Unable to sign in: user...

keycloak-policy-enforcer: Keycloak Policy Enforcer: Authorization bypass via incorrect URI comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

keycloak-policy-enforcer: Keycloak Policy Enforcer: Authorization bypass via incorrect URI comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

keycloak-policy-enforcer: Keycloak Policy Enforcer: Authorization bypass via incorrect URI comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

CVE-2026-9800

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

EUVD-2026-39471

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

CVE-2026-9800 Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

CVE-2026-9800

CVE-2026-9800 affects Keycloak Policy Enforcer. The issue allows any authenticated user to bypass authorization checks (roles, scopes, UMA) by leveraging the configured access-denied page path in the request URL, either as a path segment or a query parameter. Root cause described in records as an...

CVE-2026-9800 Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

CVE-2026-9800

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

CVE-2026-9800: Comparison Using Wrong Factors

A flaw was found in Keycloak Policy Enforcer. This vulnerability allows any authenticated user to bypass all authorization policies, including role, scope, and User-Managed Access UMA permission checks. By including the configured access-denied page path within a request URL, either as a path...

GHSA-GGW7-9675-6V4V MantisBT has an authorization bypass in private issue monitoring

Using a crafted POST request to bugmonitoradd.php, a user with project-level access can add themselves as a monitor for a private issue they do not have access to. Despite displaying an Access Denied error, the application accepts the request and creates a monitor relationship for the private...

CVE-2026-31785

In the Linux kernel, the following vulnerability has been resolved: drm/xe/xepagefault: Disallow writes to read-only VMAs The page fault handler should reject write/atomic access to read only VMAs. Add code to handle this in xepagefaultservice after the VMA lookup. v2: - Apply max line length...

OESA-2026-2101 ntfs-3g security update

NTFS-3G is a stable, open source, GPL licensed, POSIX, read/write NTFS driver for Linux and many other operating systems. It provides safe handling of the Windows XP, Windows Server 2003, Windows 2000, Windows Vista, Windows Server 2008 and Windows 7 NTFS file systems. Security Fixes: A heap buff...

OESA-2026-2102 ntfs-3g security update

NTFS-3G is a stable, open source, GPL licensed, POSIX, read/write NTFS driver for Linux and many other operating systems. It provides safe handling of the Windows XP, Windows Server 2003, Windows 2000, Windows Vista, Windows Server 2008 and Windows 7 NTFS file systems. Security Fixes: A heap buff...

ALPINE-CVE-2026-40706

In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfsbuildpermissionsposix in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path stat, readdir, open when...