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...

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...

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-2026-54370

acl before version 2.4.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat check and subsequent symlink-following operations such as stat, chown,...

rsync security update

3.2.5-7.2 - Fix integer overflow in compressed-token decoding CVE-2026-43618 - Resolves: RHEL-174932 3.2.5-7.1 - Fix TOCTOU symlink race in daemon no-chroot mode CVE-2026-29518 - Resolves: RHEL-174952 3.2.5-4 - Resolves: RHEL-104404 - Do not clear DISPLAY unconditionally...

CVE-2026-53250

In the Linux kernel, the following vulnerability has been resolved: xsk: cache csumstart/csumoffset to fix TOCTOU in xskskbmetadata The TX metadata area resides in the UMEM buffer which is memory-mapped and concurrently writable by userspace. In xskskbmetadata, csumstart and csumoffset are read...

SUSE-SU-2026:22325-1 Security update for sed

This update for sed fixes the following issue - CVE-2026-5958: a TOCTOU race can allow to read attacker-controlled content and write it to an unintended file bsc1262144...

SUSE-SU-2026:22256-1 Security update for sed

This update for sed fixes the following issue - CVE-2026-5958: a TOCTOU race can allow to read attacker-controlled content and write it to an unintended file bsc1262144...

RockyLinux 10 : rsync (RLSA-2026:26332)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:26332 advisory. rsync: rsync: Remote memory disclosure via integer overflow in compressed-token decoding CVE-2026-43618 rsync: TOCTOU symlink race condition allowing...

CVE-2026-48983 pam_usb: TOCTOU race condition in pad directory creation allows symlink substitution

pamusb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, a symlink race condition exists in per-device and per-user pad directory creation. pamusb uses a check-then-act pattern: it calls lstat to test for existence and then calls mkdir separate...

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

Overview undici is an An HTTP/1.1 client, written from scratch for Node.js Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in the HTTP/1.1 client when an attacker-controlled upstream server injects an unsolicited response onto an idle keep-alive...

rsync security update

An update is available for rsync. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The rsync utility enables the users to copy and synchronize files locally or...

RockyLinux 9 : rsync (RLSA-2026:26410)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:26410 advisory. rsync: rsync: Remote memory disclosure via integer overflow in compressed-token decoding CVE-2026-43618 rsync: TOCTOU symlink race condition allowing...

rsync: TOCTOU symlink race condition allowing local privilege escalation in daemon mode without chroot.

A flaw was found in rsync. An rsync daemon configured with "use chroot = no" is exposed to a time-of-check / time-of-use race on parent path components. A local attacker with write access to a module can replace a parent directory component with a symlink between the receiver's check and its open...

Important: Red Hat Security Advisory: rsync security update

An update for rsync is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...