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: 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: Timing-based username enumeration vulnerability in login endpoint. Versions

BIT-AUTHENTIK-2024-52307 authentik allows a timing attack due to missing constant time comparison for metrics view

authentik is an open-source identity provider. Due to the usage of a non-constant time comparison for the /-/metrics/ endpoint it was possible to brute-force the SECRETKEY, which is used to authenticate the endpoint. The /-/metrics/ endpoint returns Prometheus metrics and is not intended to be...

Timing Attack

Overview mojic is an Obfuscate C source code into encrypted, password-seeded emoji streams. Affected versions of this package are vulnerable to Timing Attack in the getDecryptStream process. An attacker can bypass file integrity checks by exploiting timing discrepancies in the HMAC verification,...

Mojic: Observable Timing Discrepancy in HMAC Verification

Summary The CipherEngine in Mojic v2.1.3 uses a standard equality operator !== to verify the HMAC-SHA256 integrity seal during the decryption phase. This creates an Observable Timing Discrepancy CWE-208, allowing a potential attacker to bypass the file integrity check via a timing attack. Details...

GHSA-WQQ3-WFMP-V85G Mojic: Observable Timing Discrepancy in HMAC Verification

Summary The CipherEngine in Mojic v2.1.3 uses a standard equality operator !== to verify the HMAC-SHA256 integrity seal during the decryption phase. This creates an Observable Timing Discrepancy CWE-208, allowing a potential attacker to bypass the file integrity check via a timing attack. Details...

GHSA-MJ7R-X3H3-7RMR ApostropheCMS: User Enumeration via Timing Side Channel in Password Reset Endpoint

Summary The password reset endpoint /api/v1/@apostrophecms/login/reset-request exhibits a measurable timing side channel that allows unauthenticated attackers to enumerate valid usernames and email addresses. When a user is not found, the handler returns after a fixed 2-second artificial delay, b...

ApostropheCMS: User Enumeration via Timing Side Channel in Password Reset Endpoint

Summary The password reset endpoint /api/v1/@apostrophecms/login/reset-request exhibits a measurable timing side channel that allows unauthenticated attackers to enumerate valid usernames and email addresses. When a user is not found, the handler returns after a fixed 2-second artificial delay, b...

EUVD-2026-23015

ApostropheCMS: User Enumeration via Timing Side Channel in Password Reset Endpoint...

Security update for ovmf

This update for ovmf fixes the following issue: CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

SUSE-SU-2026:1413-1 Security update for ovmf

This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...

SUSE-SU-2026:21208-1 Security update for dovecot24

This update for dovecot24 fixes the following issues: - Update to v2.4.3 - CVE-2025-59028: Invalid base64 authentication can cause DoS for other logins bsc1260894. - CVE-2025-59031: decode2text.sh OOXML extraction may follow symlinks and read unintended files during indexing bsc1260895. -...

OPENSUSE-SU-2026:20554-1 Security update for dovecot24

This update for dovecot24 fixes the following issues: - Update to v2.4.3 - CVE-2025-59028: Invalid base64 authentication can cause DoS for other logins bsc1260894. - CVE-2025-59031: decode2text.sh OOXML extraction may follow symlinks and read unintended files during indexing bsc1260895. -...

CVE-2026-5086

Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::SecretBuffer was used to store and compare plaintext passwords, then discrepencies in timing could be used to guess the secret password...

SUSE SLES15 Security Update : nodejs20 (SUSE-SU-2026:1363-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1363-1 advisory. Update to version 20.20.2. - CVE-2026-21717: trivially predictable hash collisions due to flaw in V8's string hashing mechanism...

Linux Distros Unpatched Vulnerability : CVE-2026-5598

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-40193 Maddy Mail Server: LDAP Filter Injection via Unsanitized Username

maddy is a composable, all-in-one mail server. Versions prior to 0.9.3 contain an LDAP injection vulnerability in the auth.ldap module where user-supplied usernames are interpolated into LDAP search filters and DN strings via strings.ReplaceAll without any LDAP filter escaping, despite the...

Timing Attack

Overview apostrophe is a content management system CMS for Node.js. It supports in-context editing, schema-driven content types, flexible widgets and a great deal more. This module contains everything necessary to build a website with ApostropheCMS. Affected versions of this package are vulnerabl...

CVE-2026-33877

ApostropheCMS is an open-source Node.js content management system. Versions 4.28.0 and prior contain a timing side-channel vulnerability in the password reset endpoint /api/v1/@apostrophecms/login/reset-request that allows unauthenticated username and email enumeration. When a user is not found,...