linux-pam: Plaintext password recovery via timing discrepancy in pam_userdb module

A flaw was found in Linux-PAM's pamuserdb module. This vulnerability, categorized as an Observable Timing Discrepancy CWE-208, allows a local or network-adjacent attacker to recover plaintext passwords. By repeatedly attempting authentication and measuring response-timing differences during...

AZL-81704 CVE-2026-27856 affecting package dovecot 2.3.20-1

Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential will lead into full access to the affected component. Limit access to the doveadm http service port,...

PYSEC-2020-37

In django-basic-auth-ip-whitelist before 0.3.4, a potential timing attack exists on websites where the basic authentication is used or configured, i.e. BASICAUTHLOGIN and BASICAUTHPASSWORD is set. Currently the string comparison between configured credentials and the ones provided by users is...

CVE-2016-8616

A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped...