CWE-204— Observable Response Discrepancy
The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.— MITRE CWE catalog
168 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-204page 4 of 4
- CVE-2026-34319MEDIUMCVSS 5.0EG 5.02026-04-21
Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows low privileged attacker…
- CVE-2026-39851MEDIUMCVSS 4.3EG 4.32026-04-08
Saleor is an e-commerce platform. From 2.10.0 to before 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118, the requestEmailChange() mutation was revealing the existence of user-provided email addresses in error messages. This vulnerability is fixed…
- CVE-2026-4045LOWCVSS 3.7EG 3.72026-03-12
A flaw has been found in projectsend up to r1945. This impacts an unknown function of the file includes/Classes/Auth.php. Executing a manipulation of the argument ldap_email can lead to observable response discrepancy. The attack can be ex…
- CVE-2026-40485MEDIUMCVSS 5.3EG 5.32026-04-18
ChurchCRM is an open-source church management system. In versions prior to 7.2.0, the public API login endpoint (/api/public/user/login) returns distinguishable HTTP response codes based on whether a username exists: 404 for non-existent u…
- CVE-2026-4113HIGHCVSS 7.2EG 7.22026-04-09
An observable response discrepancy vulnerability in the SonicWall SMA1000 series appliances allows a remote attacker to enumerate SSL VPN user credentials.
- CVE-2026-42218MEDIUMCVSS 5.3EG 5.32026-07-20
xrdp is an open source RDP server. Versions 0.10.6 and prior contain a timing side-channel vulnerability in the login interface. Due to a discrepancy in response processing times, a remote attacker can infer the existence of a username on …
- CVE-2026-43926MEDIUMCVSS 6.3EG 6.32026-06-04
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint `/client/reset-password-confirm/:hash` is handled by a non-API controller and is not covered by FOSSB…
- CVE-2026-44306MEDIUMCVSS 5.3EG 5.32026-05-12
Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.21 and 6.15.0, responses from the forgot password forms hinted at whether an account existed for a given email address. An unauthenticated attacker could …
- CVE-2026-44753LOWCVSS 3.7EG 3.72026-07-14
SAP HANA Database (user self service tools) allows an unauthenticated user to send specially crafted requests that produce distinguishable responses, enabling enumeration of valid user accounts and email addresses. Successful exploitation …
- CVE-2026-45294MEDIUMCVSS 5.3EG 5.32026-05-29
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.219, the password reset endpoint returns visually distinct responses depending on whether the submitted email address belongs to an existing us…
- CVE-2026-45620MEDIUMCVSS 5.3EG 5.32026-05-18
WWBN AVideo is an open source video platform. In 29.0 and earlier, objects/mention.json.php has no User::loginCheck() or admin gate. It only has an entry guard: preg_match('/^@/', $_REQUEST['term']) and hard-coded rowCount=10. This enables…
- CVE-2026-47083MEDIUMCVSS 4.3EG 4.32026-07-16
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Se…
- CVE-2026-53422MEDIUMCVSS 4.3EG 4.32026-07-02
Observable Response Discrepancy vulnerability in Erlang OTP ssh (ssh_sftpd module) allows an authenticated SFTP user to enumerate the existence of files and directories outside the configured root directory. The SSH_FXP_REALPATH handler i…
- CVE-2026-53908MEDIUMCVSS 4.3EG 4.32026-07-01
MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can lev…
- CVE-2026-53947MEDIUMCVSS 5.3EG 5.32026-06-24
Ghost is a Node.js content management system. From 5.18.0 until 6.21.1, a discrepancy in responses from the members signin endpoints made it possible for an unauthenticated attacker to determine whether a given email address belongs to a r…
- CVE-2026-54445MEDIUMCVSS 6.9EG 6.92026-06-05
vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers …
- CVE-2026-61503MEDIUMCVSS 5.3EG 5.32026-07-13
Rejetto HFS 3.0.0 through 3.2.0 returns observably different responses from its login endpoint depending on whether the submitted username exists. A remote unauthenticated attacker can use this to confirm valid account names, including the…
- CVE-2026-8242LOWCVSS 3.7EG 3.72026-05-10
A vulnerability was found in Industrial Application Software IAS Canias ERP 8.03. The impacted element is the function doAction of the component Login RMI Interface. Performing a manipulation results in observable response discrepancy. The…
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