CVE-2026-42218

CVE-2026-42218 affects xrdp, an open source RDP server. The issue is a timing side‑channel in the login interface of versions 0.10.6 and earlier that allows remote observers to infer whether a username exists, enabling information disclosure via username enumeration. The vulnerability is explicit...

CVE-2026-44332

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username...

CVE-2026-44332: Observable Discrepancy

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0, the default Authorizer function in the BasicAuth middleware in middleware/basicauth/config.go uses short-circuit evaluation that skips password hash comparison for non-existent usernames, enabling reliable remote username...

CVE-2021-20556

IBM Cognos Controller 10.4.1, 10.4.2, and 11.0.0 could allow a remote user to enumerate usernames due to differentiating error messages on existing usernames. IBM X-Force ID: 199181...

PT-2024-12126 · Ibm · Ibm Aspera Orchestrator

Name of the Vulnerable Software and Affected Versions: IBM Aspera Orchestrator version 4.0.1 Description: The issue allows a remote attacker to enumerate usernames due to observable response discrepancies. Recommendations: For IBM Aspera Orchestrator version 4.0.1, upgrade the affected component ...

SUSE CVE-2012-5615

Oracle MySQL 5.5.38 and earlier, 5.6.19 and earlier, and MariaDB 5.5.28a, 5.3.11, 5.2.13, 5.1.66, and possibly other versions, generates different error messages with different time delays depending on whether a user name exists, which allows remote attackers to enumerate valid usernames...

CVE-2021-29687

IBM Security Identity Manager 7.0.2 could allow a remote user to enumerate usernames due to a difference of responses from valid and invalid login attempts. IBM X-Force ID: 200018...

PT-2019-19047 · Atlassian · Jira

Name of the Vulnerable Software and Affected Versions: Jira versions prior to 8.4.0 Description: The issue concerns an information disclosure vulnerability in the /rest/api/latest/groupuserpicker resource. This allows remote attackers to enumerate usernames. Recommendations: For versions prior to...

PT-2017-19014 · Synology · Synology Diskstation Manager

Name of the Vulnerable Software and Affected Versions: Synology DiskStation Manager DSM versions prior to 6.1.3-15152 Description: The issue allows remote attackers to enumerate valid usernames via unspecified vectors due to an information exposure vulnerability in forget passwd.cgi...

CVE-2009-2336: Undefined Security Weakness

The forgotten mail interface in WordPress and WordPress MU before 2.8.1 exhibits different behavior for a password request depending on whether the user account exists, which allows remote attackers to enumerate valid usernames. NOTE: the vendor reportedly disputes the significance of this issue,...

CVE-2009-0348: Exposure of Sensitive Information to an Unauthorized Actor

The login module in Sun Java System Access Manager 6 2005Q1 aka 6.3, 7 2005Q4 aka 7.0, and 7.1 responds differently to a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames...

CVE-2006-2676: Undefined Security Weakness

Dispatch.cgi/user/uservCard/ in SiteScape Forum 7.2 and possibly earlier generates different responses in a way that allows remote attackers to enumerate valid usernames...

CVE-2006-0599: Undefined Security Weakness

The 1 elog.c and 2 elogd.c components in elog before 2.5.7 r1558-4 generate different responses depending on whether or not a username is valid, which allows remote attackers to determine valid usernames...

CVE-2006-0129: Undefined Security Weakness

Mail Management Agent MAILMA aka Mail Management Server in Rockliffe MailSite 7.0.3.1 and earlier generates different responses depending on whether or not a username is valid, which allows remote attackers to enumerate valid usernames via user requests to TCP port 106...

RedHat Linux 7.0 Apache - Remote Username Enumeration

RedHat Linux 7.0 Apache - Remote Username Enumeration source: https://www.securityfocus.com/bid/3335/info Versions of Apache webserver shipping with Red Hat Linux 7.0 and possibly other Apache distributions install with a default misconfiguration which could allow remote users to determine whethe...