CVE-2026-104034

A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager KCM responder during Kerberos ticket-granting ticket TGT renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos tick...

CVE-2026-104036

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...

CVE-2026-104035

A flaw was found in SSSD. An issue in the Kerberos Credential Manager KCM responder allows a local user to cause a Denial of Service DoS by maintaining a persistent connection and repeatedly storing and destroying credentials. Because the service fails to release cached objects from memory when...

DEBIAN-CVE-2026-104032

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of...

CVE-2026-104032

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of...

CVE-2026-104032

A flaw was found in SSSD. An unprivileged local user can repeatedly request master automount map updates through the autofs responder due to missing authorization checks. This triggers global cache invalidation and forces repeated lookups to backend directory providers, leading to a Denial of...

CVE-2026-104031

A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly...

CVE-2026-104036

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...

UBUNTU-CVE-2026-104031

A flaw was found in SSSD. In configurations where the autofs responder service is enabled, memory allocated during successful request processing is not released until the client connection terminates. A local attacker can exploit this vulnerability by maintaining an open connection and repeatedly...

UBUNTU-CVE-2026-104034

A flaw was found in SSSD. A use-after-free vulnerability exists in the Kerberos Credential Manager KCM responder during Kerberos ticket-granting ticket TGT renewal, where a deferred callback accesses memory that has already been released. An authenticated local user with a renewable Kerberos tick...

UBUNTU-CVE-2026-104036

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...

CVE-2026-104044 Sssd: sssd: denial of service via crafted passkey kerberos authentication request

A flaw was found in sssd. A local attacker can trigger a Denial of Service DoS by sending a specially crafted Pluggable Authentication Module PAM request when passkey authentication is enabled. Due to a missing state validation check in passkey Kerberos handling, the PAM responder dereferences an...

EUVD-2026-92912

A flaw was found in sssd. A local attacker can cause a Denial of Service DoS by sending a crafted Pluggable Authentication Module PAM request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundari...

CVE-2026-104042

A vulnerability exists in sssd where a local attacker can trigger a Denial of Service (DoS) . The flaw is caused by an out-of-bounds read (CWE-125) occurring when the service processes a crafted Pluggable Authentication Module (PAM) request containing a zero-length authentication token sent to th...

CVE-2026-104042 Sssd: sssd: denial of service via out-of-bounds read in pam responder

A flaw was found in sssd. A local attacker can cause a Denial of Service DoS by sending a crafted Pluggable Authentication Module PAM request containing a zero-length authentication token to the responder socket. Due to missing input validation, the service attempts to read beyond buffer boundari...

EUVD-2026-92910

A flaw was found in SSSD. When configured with the Entra ID identity provider, input lookup names containing single quotes are not properly escaped before being included in Microsoft Graph Open Data Protocol OData queries. A low-privileged local user can exploit this flaw by submitting a crafted...

CVE-2026-104040

A flaw in SSSD allows for OData injection when configured with the Entra ID identity provider. Because input lookup names containing single quotes are not properly escaped before being included in Microsoft Graph OData queries , a low-privileged local user can submit a crafted search request to a...

CVE-2026-104039 Sssd: sssd: denial of service via stale connection state reuse in pam gssapi responder

A flaw was found in SSSD. A local user can cause a denial of service DoS by disrupting system authentication services. When handling Generic Security Services Application Programming Interface GSSAPI authentication in the Pluggable Authentication Module PAM responder, cached connection state is...

EUVD-2026-92893

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...

CVE-2026-104036

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to...