Red Hat Enterprise Linux 8

An unauthenticated remote denial-of-service vulnerability in FreeIPA, tracked as CVE-2026-73197, allows attackers to exhaust system memory by sending oversized form POST requests to the migration endpoint.

An integer overflow vulnerability (CVE-2026-18917) in the libvirt NodeGetFreePages RPC handler allows an unprivileged local user to trigger a heap buffer overflow and achieve potential local privilege escalation.

A file descriptor leak in the Performance Co-Pilot (PCP) linux_sockets module allows an attacker with initial code execution to escalate privileges to root.

A command injection vulnerability (CVE-2026-16524) in the PCP linux_sockets PMDA allows local attackers to execute arbitrary commands by injecting shell metacharacters into the network.persocket.filter metric.

A critical local privilege escalation (LPE) vulnerability, tracked as CVE-2026-17523 and identified as an Expired Pointer Dereference (CWE-825), exists within the kernel, primarily affecting Red Hat Enterprise Linux 8, enabling an unprivileged local user to execute arbitrary code within the kernel, leading to root privileges and full control over the compromised system.

A high-severity denial of service vulnerability, CVE-2026-64611, exists in the `cfIEEE1284NormalizeMakeModel()` function of libcupsfilters, allowing a network-adjacent attacker to cause sustained CPU consumption and system unresponsiveness by broadcasting a specially crafted printer advertisement with an empty model field in the IEEE-1284 device ID.

A path traversal vulnerability (CVE-2026-14476) in SSSD's Active Directory Group Policy Object (AD GPO) provider allows an authenticated attacker with AD GPO management access to write arbitrary files outside the GPO cache directory with root privileges, leading to Kerberos configuration injection and potential authentication bypass on Red Hat Enterprise Linux systems.

A high-severity off-by-one error, CVE-2026-58380, in GIMP's PNM file format parser (specifically the `pnmscanner_gettoken()` function) allows an attacker to corrupt memory by crafting a malicious PNM file, potentially leading to denial of service or arbitrary code execution when the file is opened.