Important: Red Hat Security Advisory: libcap security update

An update for libcap is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Syst...

CVE-2025-41259

SWUpdate before 2026.05 is affected by a time-of-check time-of-use TOCTOU race condition that allows local unprivileged attackers to escalate privileges to root or install untrusted contents using a signed update...

EUVD-2025-210052

SWUpdate before 2026.05 is affected by a time-of-check time-of-use TOCTOU race condition that allows local unprivileged attackers to escalate privileges to root or install untrusted contents using a signed update...

PT-2026-45914

SWUpdate before 2026.05 is affected by a time-of-check time-of-use TOCTOU race condition that allows local unprivileged attackers to escalate privileges to root or install untrusted contents using a signed update...

CVE-2026-25260 Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service

Memory Corruption when accessing shared buffers without validation of concurrent user-mode input modifications...

CVE-2026-46159

The CVE concerns the Linux kernel's btrfs_ioctl_space_info() where a TOCTOU race between two passes over block group RAID type lists can leak kernel data to userspace. The first pass counts entries to determine alloc_size, then the second pass fills the buffer; releasing groups_sem between passes...

CVE-2026-9796

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

EUVD-2026-32716

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

CVE-2026-9796

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

SUSE CVE-2026-45927

In the Linux kernel, the following vulnerability has been resolved: bpf: Require frozen map for calculating map hash Currently, bpfmapgetinfobyfd calculates and caches the hash of the map regardless of the map's frozen state. This leads to a TOCTOU bug where userspace can call BPFOBJGETINFOBYFD t...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the role rename endpoint. An attacker can gain unauthorize...

CVE-2026-45927

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF subsystem. This vulnerability, a Time-of-check to time-of-use TOCTOU bug, allows a local attacker to modify the contents of a BPF map after its hash has been calculated but before it is frozen. Consequently, a trusted loader could ...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from TOCTOU race conditions in the btrfsbtrfsioctlspaceinfo function, potentially leading to informati...

PT-2026-44187

A flaw was found in Keycloak. An authenticated administrator with the manage-clients role can exploit a Time-of-check to time-of-use TOCTOU vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to realm-admin for all users within the realm,...

CVE-2026-24191

NVIDIA Display Driver for Windows contains a vulnerability where an attacker could cause a time-of-check time-of-use issue. A successful exploit of this vulnerability might lead to denial of service, escalation of privileges, information disclosure, data tampering, and code execution...

UBUNTU-CVE-2026-45927

In the Linux kernel, the following vulnerability has been resolved: bpf: Require frozen map for calculating map hash Currently, bpfmapgetinfobyfd calculates and caches the hash of the map regardless of the map's frozen state. This leads to a TOCTOU bug where userspace can call BPFOBJGETINFOBYFD t...

CVE-2026-45927

In CVE-2026-45927, the Linux kernel BPF path bpf_map_get_info_by_fd caches the map hash regardless of the map’s frozen state, enabling a TOCTOU where a loader could verify a stale hash before freezing contents. The fix returns -EPERM if the map is not frozen when the hash is requested, ensuring t...

SUSE-SU-2026:2083-1 Security update for rsync

This update for rsync fixes the following issues - CVE-2026-29518: Symlink-Race TOCTOU in Daemon bsc1264511. - CVE-2026-41035: count of entries mismatch can lead to a use-after-free bsc1262223. - CVE-2026-43617: Authorization Bypass via Hostname Resolution bsc1264515. - CVE-2026-43618: Integer...

libcap: libcap: Privilege escalation via TOCTOU race condition in cap_set_file()

A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use TOCTOU race condition in the capsetfile function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so,...

RHEL 9 : libcap (RHSA-2026:21254)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:21254 advisory. Libcap is a library for getting and setting POSIX.1e formerly POSIX 6 draft 15 capabilities. Security Fixes: libcap: libcap: Privilege escalation vi...