CVE-2026-72721: Improper Handling of Case Sensitivity

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, Onebox::DomainChecker.isblocked? compares hostnames and SiteSetting.blockedoneboxdomains entries case-sensitively, allowing an attacker to bypass configured Onebox domain restrictions by changing...

CVE-2026-18214

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This mean...

CVE-2026-18214

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This mean...

EUVD-2026-51485

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This mean...

CVE-2026-18214

Keycloak allows users to log in using Google accounts and can be configured to only allow users from specific Google Workspace domains. A flaw was found where the token exchange feature, which allows swapping a Google token for a Keycloak token, does not check these domain restrictions. This mean...

Incorrect Authorization

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to Incorrect Authorization in the process that handles credential domain restrictions when user-supplied base or endpoint URLs are set. An attacker can exfiltrate credential secrets by configuring...

GHSA-H44J-F5R5-PH73 n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector

Impact The AI Agents feature did not enforce the "Allowed HTTP Request Domains" restriction configured on credentials. As a result, a member-level user who had been granted use-only access to a shared credential could cause its secret to be sent to an external server they control, by pointing an...

Improper Restriction of Communication Channel to Intended Endpoints

Overview n8n is a n8n Workflow Automation Tool Affected versions of this package are vulnerable to Improper Restriction of Communication Channel to Intended Endpoints via the AI Agents MCP verifier in packages/cli/src/modules/agents/builder/agents-builder-tools.service.ts. An attacker can send th...

PYSEC-2026-2050 Domain restrictions bypass via DNS Rebinding in WireMock and WireMock Studio webhooks, proxy and recorder modes

Impact The proxy mode of WireMock, can be protected by the network restrictions configuration, as documented in Preventing proxying to and recording from specific target addresses. These restrictions can be configured using the domain names, and in such a case the configuration is vulnerable to t...

PYSEC-2026-843 Matrix Sydent mishandles emails

util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowedlocal3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on...

Matrix Sydent mishandles emails

util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowedlocal3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on...

EUVD-2026-38376

n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n8n server to issue HTTP requests with...

CVE-2026-48780 Forem vulnerable to bypass of email address domain restrictions

Forem is open source software for building communities. Prior to commit a2ab6d4, a maliciously crafted email address could allow an attacker to bypass domain allowlist or denylist restrictions and gain access to invite-only forem deployments. The issue is patched as of a2ab6d4. As a workaround,...

PT-2026-51414

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.20.0 Description An issue in the "POST /rest/dynamic-node-parameters/options" endpoint allows authenticated users with credential access to bypass Allowed HTTP Request Domains restrictions. This enables an attacker to...

BIT-MASTODON-2026-41259 Mastodon: Insufficient verification of email addresses

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

CVE-2026-40574

A flaw was found in OAuth2 Proxy, a reverse proxy providing authentication using OAuth2 providers. A remote attacker can exploit an authorization bypass vulnerability by crafting a malicious email claim. This allows the attacker to bypass emaildomain restrictions, which are used to limit access t...

CVE-2026-41259 Mastodon: Insufficient verification of email addresses

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

CVE-2026-41259

CVE-2026-41259 affects Mastodon prior to versions 4.5.9, 4.4.16, and 4.3.22. The issue is insufficient verification of email addresses: Mastodon allows restricting new user sign-up by domain but does not properly handle characters that some mail servers interpret differently. Root cause is incomp...

CVE-2026-41259 Mastodon: Insufficient verification of email addresses

Mastodon is a free, open-source social network server based on ActivityPub. Prior to v4.5.9, v4.4.16, and v4.3.22, Mastodon allows restricting new user sign-up based on e-mail domain names, and performs basic validation on e-mail addresses, but fails to restrict characters that are interpreted...

Zurich Instruments LabOne Web Server 路径遍历漏洞

Zurich Instruments LabOne Web Server is a web service component provided by the Swiss company Zurich Instruments. It serves for instrument control, data acquisition, and visualization interface operations. The Zurich Instruments LabOne Web Server has a path traversal vulnerability, which stems fr...