RHSA-2026:49840 Red Hat Security Advisory: sssd security update

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CVE-2026-68744 Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply

A flaw was found in SSSD. The sssnssprotocolfillinitgr function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to...

sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation

A flaw was found in SSSD's LDAP sudo provider. When the ldapsudosearchbase option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo...

sssd: sssd: GPO cache path traversal via unsanitized gPCFileSysPath allows Kerberos authentication bypass

A path traversal flaw was found in SSSD's AD GPO provider. The adgpoextractsmbcomponents function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL...

Linux Distros Unpatched Vulnerability : CVE-2026-68743

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in SSSD. The extractauthtokv1 function in the PAM responder does not validate the authtokenlength field against the remaining buffer size befor...

RHSA-2026:46482 Red Hat Security Advisory: sssd security update

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OESA-2026-3150 sssd security update

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy...

RHSA-2026:42122 Red Hat Security Advisory: sssd security update

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CVE-2026-12610

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of servi...

Astra Linux – Vulnerability in sssd

A flaw was discovered in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Since the data is treated as a NUL-terminated C string without an explicit termination, this leads to a...

EulerOS Virtualization 2.10.0 : sssd (EulerOS-SA-2026-2064)

According to the versions of the sssd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in the integration of Active Directory and the System Security Services Daemon SSSD on Linux systems. In default...

USN-8355-1 sssd vulnerability

It was discovered that SSSD did not properly handle raw bytes in the PAM passkey responder. A local attacker could possibly use this issue to cause the SSSD PAM responder to crash, resulting in a denial of service...

OESA-2026-2171 sssd security update

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy...

OESA-2026-2169 sssd security update

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy...

CVE-2026-6245

A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an...

CVE-2026-6245 Sssd: out-of-bounds read in the sssd

A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an...

CVE-2026-6245 Sssd: out-of-bounds read in the sssd

A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an...

PT-2026-33133

Name of the Vulnerable Software and Affected Versions System Security Services Daemon SSSD affected versions not specified Description A flaw exists in the System Security Services Daemon SSSD where the pam passkey child read data function within the PAM passkey responder fails to properly handle...

ROS-20260209-73-0015

Vulnerability in sssd related to insecure privilege management. Exploitation of the vulnerability could allow an attacker to escalate privileges...

MiracleLinux 4 : sssd-1.12.4-47.AXS4.4 (AXSA:2015-557:03)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2015-557:03 advisory. Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a...