CVE-2026-42391

An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in, which causes memory and CPU usage to grow disproportionately. The login process can be terminated by the out-of-memory handling, which also terminates all other connections handled by...

CVE-2026-33605

An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...

EUVD-2026-67660

An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode default for community releases, only the attacker's own connection is terminated. If running in high-performance mode default for Pro...

EUVD-2026-67576

SOY Calendar contains a cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who is logging in to the product...

PT-2026-83053

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description An unauthenticated attacker can cause a denial of service for Sieve script management by sending a small malformed command before authentication, which crashes the ManageSieve login process. The...

CVE-2026-42395

A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause degradation or denial of service for logins. Deployments that do not configure trusted proxies a...

PT-2026-83067

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description An unauthenticated attacker can send an IMAP ID command containing an excessive number of parameters before authentication. This action causes disproportionate growth in memory and CPU usage,...

PT-2026-83070

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description A host configured as a trusted proxy can send forwarding information containing a NUL byte. This causes the login process to crash during the subsequent login attempt, leading to process...

PT-2026-65740

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in the administrative API used to manage identity providers and organizations. An administrator with permissions to manage identity providers can link a new provider to an...

CVE-2026-58450

Invoice Ninja through 5.13.26 contains an open redirect vulnerability in the client portal login that allows unauthenticated attackers to redirect authenticated victims to attacker-controlled external URLs by injecting a malicious value into the intended query parameter. Attackers can craft a...

CVE-2026-40082 Cacti: Session Fixation via missing session_regenerate_id() after login

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have missing sessionregenerateid after login, leading to Session Fixation. sessionregenerateid is NOT called after successful login. The login flow at authlogin.php:203-207 directly sets $SESSIONSESSUSER...

CVE-2026-45027

WeGIA is a web manager for charitable institutions. In versions prior to 3.7.3, login.php hashes the submitted password with PHP hash(…, 'SHA-256') and no salt, and the password-change flow uses the same pattern. SHA-256 is a fast general-purpose hash, not ideal for password storage, so identical...

LDAP Injection

Overview Affected versions of this package are vulnerable to LDAP Injection in the login process due to improper escaping of user-supplied input before it is incorporated into LDAP search filters. An attacker can enumerate valid usernames and extract sensitive attribute data from the connected LD...

CVE-2026-44671

ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allo...

CVE-2025-61669

Jupyter Server is the backend for Jupyter web applications. In jupyterserver versions through 2.17.0, the next query parameter in the login flow is insufficiently validated in LoginFormHandler.redirectsafe, which allows redirects to arbitrary external domains via values such as ///example.com. An...

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...

AZL-81686 CVE-2025-59028 affecting package dovecot 2.3.20-1

When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail. Invalid BASE64 data can be used to DoS a vulnerable server to break concurrent logins. Install fixed version or disable concurrency in login processes hea...

CVE-2025-59028

When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail. Invalid BASE64 data can be used to DoS a vulnerable server to break concurrent logins. Install fixed version or disable concurrency in login processes hea...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the login process. An attacker can exhaust server CPU and memory resources by submitting authentication requests with excessively large password payloads. Remediation Upgrade...