CVE-2026-4018

CVE-2026-4018 describes a TOCTOU race condition in specific trace commands of the TraceEvent() system call in the QNX Neutrino kernel, affecting versions of the QNX Software Development Platform and QNX OS for Safety. The vulnerability could allow a local attacker with PROCMGR_AID_TRACE privilege...

Security Bulletin: IBM Operations Analytics - Log Analysis is affected by a TOCTOU weakness allowing active sessions to persist beyond a password change

Summary IBM Operations Analytics - Log Analysis contains a Time-Of-Check to Time-Of-Use TOCTOU weakness in its built-in user password management feature. The built-in authentication module of IBM Operations Analytics - Log Analysis is used by IBM Operations Analytics - Log Analysis as part of the...

CVE-2026-45203

The CVE-2026-45203 entry concerns a TOCTOU issue in GPU DDK software used inside a Host VM. CVE records attribute a vulnerability in the rgxfw_hwperf_ufo() path where the command size is re-read after initial validation, enabling improper commands to reach GPU firmware and potentially trigger a m...

EulerOS 2.0 SP12 : libcap (EulerOS-SA-2026-2539)

According to the versions of the libcap packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : 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...

ALPINE-CVE-2025-58151

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net/sched: teql: Fix double-free in teqlmasterxmit CVE-2026-23449 In the Linux kernel, the following vulnerability has been resolved: ext4: validate pidx bounds in ext4extcorrectindexes CVE-2026-31449 In the Linux...

virtualenv Has TOCTOU Vulnerabilities in Directory Creation

ImpactTOCTOU Time-of-Check-Time-of-Use vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv's appdata...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update CVE-2026-23171 In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it ...

UBUNTU-CVE-2026-55950

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

EUVD-2026-41414

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

CVE-2026-55950

This CVE (CVE-2026-55950) describes a TOCTOU race in Erlang/OTP ssl (dtls_packet_demux.erl) where a DTLS listener’s shared demux process can be crashed by an unauthenticated remote attacker sending rapid ClientHello datagrams from the same source IP/port. The race in the internal gb_trees store l...

SurrealDB: HTTP RPC Session Race Condition Allows Privilege Escalation

The HTTP /rpc endpoint has a time-of-check/time-of-use TOCTOU race condition on internal session state. When authenticated and unauthenticated requests are processed concurrently, the unauthenticated request can inherit the authenticated user's session and privileges. The /rpc endpoint is the...

CVE-2026-12374

Improper certificate validation and a time-of-check time-of-use TOCTOU race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller...

CVE-2026-12374

CVE-2026-12374 affects the macOS PrivilegedHelperTool in Cato Client prior to v5.13.1. The issue combines improper XPC caller certificate validation with a TOCTOU race, allowing a local authenticated attacker to escalate to root by using a self-signed certificate that bypasses XPC caller verifica...

EUVD-2026-41001

Improper certificate validation and a time-of-check time-of-use TOCTOU race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller...

SUSE CVE-2026-41991

GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user's PATH, gzexe falls back to constructing a temporary file path based solely on the process ID PID. This predictable filename is created without...

EUVD-2026-40402

IBM Langflow OSS 1.0.0 through 1.9.3 contains a Server-Side Request Forgery SSRF vulnerability in the URL component src/lfx/src/lfx/components/datasource/url.py due to a Time-of-Check/Time-of-Use TOCTOU race condition that can be exploited via DNS rebinding...

CVE-2026-14160

Time-of-check time-of-use TOCTOU race condition vulnerability in Samsung Open Source Escargot allows Leveraging Race Conditions. This issue affects Escargot: bab3a5797557014ce3c2e28419a6310cfba90d0d...

CVE-2026-14160

Time-of-check time-of-use TOCTOU race condition vulnerability in Samsung Open Source Escargot allows Leveraging Race Conditions. This issue affects Escargot: bab3a5797557014ce3c2e28419a6310cfba90d0d...

Linux Distros Unpatched Vulnerability : CVE-2026-41991

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user's PATH,...