Temporal UI State Inconsistency in Desktop GUI Agents: Formalizing and Defending against TOCTOU Attacks on Computer-Use Agents

GUI agents that control desktop computers via screenshot-and-click loops introduce a new class of vulnerability: the observation-to-action gap mean 6.51 s on real OSWorld workloads creates a Time-Of-Check, Time-Of-Use TOCTOU window during which an unprivileged attacker can manipulate the UI state...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the TokenAuthenticator process. An attacker can determine valid usernames by measuring response time differences when submitting authentication requests with the X-AUTH-USER header. Remediation Upgrade kimai/kimai to...

Kimai: Username enumeration via timing on X-AUTH-USER

Details src/API/Authentication/TokenAuthenticator.php calls loadUserByIdentifier first and only invokes the password hasher argon2id when a user is returned. When the username does not exist, the request returns roughly 25 ms faster than when it does. The response body is the same in both cases...

GHSA-JRC6-FMHW-FPQ2 Kimai: Username enumeration via timing on X-AUTH-USER

Details src/API/Authentication/TokenAuthenticator.php calls loadUserByIdentifier first and only invokes the password hasher argon2id when a user is returned. When the username does not exist, the request returns roughly 25 ms faster than when it does. The response body is the same in both cases...

CVE-2026-5598

A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA core. A covert timing channel vulnerability, caused by non-constant time comparisons, risks the leakage of private keys in the FrodoKEM implementation. An unauthenticated, remote attacker can potentially exploit this timing discrepancy ...

Bouncy Castle Has Covert Timing Channel Vulnerability

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all core modules. This vulnerability is associated with program files FrodoEngine.Java. This issue only affects users of the FrodoKEM algorithm involved in the decryption of encapsulations. This issue affects...

EUVD-2026-22872

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all core modules. Non-constant time comparisons risk private key leakage in FrodoKEM. This issue affects BC-JAVA: from 2.17.3 before 1.84...

GHSA-P93R-85WP-75V3 Bouncy Castle Has Covert Timing Channel Vulnerability

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all core modules. This vulnerability is associated with program files FrodoEngine.Java. This issue only affects users of the FrodoKEM algorithm involved in the decryption of encapsulations. This issue affects...

SUSE CVE-2026-5598

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all core modules. This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84...

OESA-2026-1951 nodejs security update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

OESA-2026-1953 nodejs security update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

OESA-2026-1954 nodejs security update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

OESA-2026-1952 nodejs security update

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the login process. An attacker can obtain sensitive information about valid usernames by measuring response times and leveraging timing discrepancies. Remediation Upgrade github.com/enchant97/note-mark/backend/services...

Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack via the login process. An attacker can obtain sensitive information about valid usernames by measuring response times and leveraging timing discrepancies. Remediation Upgrade github.com/enchant97/note-mark/backend/db to...

CVE-2026-40263

Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the login endpoint performs bcrypt password verification only when the supplied username exists, returning immediately for nonexistent usernames. This timing discrepancy allows unauthenticated attackers to enumerat...

QUACK! Making the (Rubber) Ducky Talk: A Systematic Study of Keystroke Dynamics for HID Injection Detection

Modern computing systems inherently trust human input devices, creating an exploitable attack surface for adversarial automation. USB Human Interface Device HID emulation attacks, such as those enabled by the USB Rubber Ducky, exploit this assumption to inject arbitrary keystroke sequences while...

SUSE SLES15 Security Update : ovmf (SUSE-SU-2026:1413-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1413-1 advisory. This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error...

CVE-2026-40263 Note Mark: Username Enumeration via Login Endpoint Timing Side-Channel

Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the login endpoint performs bcrypt password verification only when the supplied username exists, returning immediately for nonexistent usernames. This timing discrepancy allows unauthenticated attackers to enumerat...

CVE-2026-40263

Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the login endpoint performs bcrypt password verification only when the supplied username exists, returning immediately for nonexistent usernames. This timing discrepancy allows unauthenticated attackers to enumerat...