Weakness (CWE)
CWE-290: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
Source: MITRE CWE-290
253 results · Clear filters · Feed
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High 7.8
Windows Network Connection Broker Elevation of Privilege Vulnerability
Improper authorization in Windows Network Connection Broker allows an authorized attacker to elevate privileges locally.
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High 7.5
Hickory-DNS 0.26.0-beta.1 before 0.26.2 DNSSEC Nonexistence Proof Forgery via NSEC3
Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 perform insufficient checks on NSEC3 record names during DNSSEC verification, comparing only the hashed label without confirming the record belongs to the correct zon…
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High 8.5
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication. Information supplied by the client is not sufficiently verified, which could a…
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High 8.8
Cendio ThinLinc Improper Authentication via Web Access
Cendio ThinLinc contains an improper authentication vulnerability in its browser-based web client (tlwebaccess) that allows an authenticated attacker to impersonate any other user, including root, by exploiting flaws in multi-step authentication flows such as…
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High 8.3
Authentication bypass in the HA heartbeat origin check in middlewared in TrueNAS SCALE before 25.10.8 (and in release t…
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High 8.1
Databasement before 1.10.9 Account Takeover via OIDC Email Auto-Linking
Databasement before 1.10.9 contains an authentication bypass vulnerability in OAuthService::findOrCreateLocalUser() that links OIDC identities to local users by email without checking email_verified. Attackers can register an identity provider account with a …
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High 7.7
Symfony: X.509 Authentication Impersonation via DN Value Injection (incomplete fix for CVE-2026-45063)
Authentication bypass by spoofing in X509Authenticator and X509AuthenticationListener of Symfony versions prior to 5.4.56, 6.x prior to 6.4.50, 7.x prior to 7.4.23, and 8.x prior to 8.1.11 allows an attacker holding a certificate from the application's truste…
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High 7.9
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration…
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High 7.1
Dell OpenManage Enterprise, versions prior to 4.8.0, contains an Authentication Bypass by Spoofing vulnerability. An un…
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High 8.7
Fireware OS Missing Authentication in FireCluster Sync Allows Privilege Escalation
A missing authentication vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to invoke privileged firewall management actions as root by…
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High 7.5
Authentication Bypass with X-Agentic-Ally-Token in Keepnet Labs Agentic AI / Agentic Ally
Authentication bypass by spoofing vulnerability in Keepnet Labs Ltd. Agentic AI / Agentic Ally allows Authentication Bypass. This issue affects Agentic AI / Agentic Ally: before 0ef61f2e.
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High 7.8
A downgrade issue was addressed with additional version checks. This issue is fixed in macOS Golden Gate 27.2, macOS Se…
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High 7.0
Heimdall: IP Spoofing via Unvalidated Forwarding Headers
Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.17, when the trusted_proxies option is configured, heimdall extracts client IP addresses from the Forwarded (for= parameter) and X-Forwarded-For headers…
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High 8.8
Authentication Bypass via IP Spoofing in CGM CLININET rsyncd
The rsyncd service of the CGM CLININET is vulnerable to Authentication Bypass via IP spoofing. Access is granted based solely on the client's source IP address. An attacker able to spoof an allowed IP address, can bypass this check and gain the ability to edi…
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High 8.7
Traefik v3.7.0 before v3.7.14 mTLS Header Spoofing via Ingress-NGINX HTTP Router
Traefik from v3.7.0 before v3.7.14 contains an authentication bypass vulnerability in its Kubernetes Ingress-NGINX provider that forwards client-supplied Ssl-Client-* headers on the plaintext HTTP router. When ssl-redirect is disabled alongside auth-tls-pass-…
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High 7.4
WIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO Header
WIMOOR through commit ec86736 contains an authentication bypass vulnerability that allows attackers to impersonate any tenant and privilege level by sending an unsigned X-USERINFO header. Attackers reaching backend service ports directly, bypassing the gatewa…
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High 7.5
In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver, `ClientIpKeyResolver`, derives the per-cli…
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High 8.1
FileRise OIDC login can bind an attacker identity to an existing local account
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise maps an authenticated OIDC identity to a local account using mutable preferred_username or email claims and does not require emai…
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High 8.1
FileRise: AUTH_BYPASS reverse-proxy header trust without source IP validation enables full authentication bypass
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise deployments with AUTH_BYPASS enabled trust the configured reverse-proxy identity header without verifying that the request origin…
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High 7.5
NGINX Ingress Controller vulnerability
An authentication and authorization bypass vulnerability exists in F5 NGINX Kubernetes Ingress Controller (NIC) when configured with the `ExternalAuth` policy or Ingress external authentication. Client-supplied X-Forwarded-Prefix, X-Forwarded-URI, X-Original-…
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High 7.6
OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subj…
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High 7.5
Active Directory Federation Services (AD FS) Spoofing Vulnerability
No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
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High 8.4
Windows Internet (wininet.dll) Spoofing Vulnerability
Improper privilege management in Windows Internet (wininet.dll) allows an authorized attacker to perform spoofing locally.
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High 7.5
ASP.NET Core Elevation of Privilege Vulnerability
Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
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High 8.6
Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute ar…
KEV Oct 13, 2026 -
High 7.5CVE-2026-62367 Public exploit
Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover
Vikunja is an open-source self-hosted task management platform. In versions 1.0.0 through 2.3.0, when an administrator enables the per-provider `emailfallback` option on an OpenID Connect provider, Vikunja links an SSO login to a pre-existing local (username+…
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High 7.5
WordPress GiveWP plugin <= 4.16.8.1 - Payment Bypass vulnerability
Authentication Bypass by Spoofing vulnerability in Liquid Web / StellarWP GiveWP give allows Identity Spoofing.This issue affects GiveWP: from n/a through 4.16.8.1.
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High 7.5
WordPress Forminator plugin <= 1.57.2 - Payment Bypass vulnerability
Authentication Bypass by Spoofing vulnerability in WPMU DEV Forminator forminator allows Identity Spoofing.This issue affects Forminator: from n/a through 1.57.2.
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High 7.5
Authentication Bypass by Spoofing in Jacamar CI
Insufficient job validation for service accounts in Jacamar CI prior to v0.30.0 allows authenticated CI users to generate arbitrary account names.
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High 7.1
An authentication bypass and command injection vulnerability exists in the inter-switch remote execution service of Bro…
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High 8.8
Security Advisory 0190
An unauthenticated attacker located on an adjacent private network (or any attacker routed through a reverse proxy/load balancer that forwards client headers) can forge their source IP address and gain administrative session privileges on the CV-CUE backend.
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High 7.5
WordPress WP Migration Plugin DB & Files – WP Synchro plugin <= 1.16.1 - 2FA Bypass vulnerability
Subscriber Bypass Vulnerability in WP Migration Plugin DB & Files – WP Synchro <= 1.16.1 versions.
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High 7.1
Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write
Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol (MCP) configuration installation endpoint (POST /api/v1/mcp/project/{project_id}/install) allowe…
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High 7.5
mppx-condition-gate: Free-access path grants on a self-declared wallet without proving control
mppx-condition-gate provides conditional free-access wrappers for mppx payment methods. Prior to @insumermodel/mppx-condition-gate 3.0.0 and @insumermodel/mppx-token-gate 1.0.4, the packages read a wallet address from the client-supplied credential.source, ch…
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High 8.1
Pki-core: dogtag-pki: redhat-pki: pki: est fullcmc authentication bypass allows certificate mis-issuance with arbitrary subject
A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST s…
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High 8.8
xdg-dbus-proxy: message filtering bypass via reply serial allows sandbox escape
An incorrect implementation of message filtering in xdg-dbus-proxy versions before 0.1.9 allows an attacker to bypass the intended message filtering on the D-Bus session bus by setting a reply serial number on non-reply messages. A malicious or compromised Fl…
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High 7.4
User Impersonation/Authorization Bypass in XMPP Server ejabberd
User Impersonation in ProcessOnes XMMP Server ejabberd <= 26.04 allows an attacker to impersonate arbitrary users via unvalidated authzid parameter in SASL-PLAIN mechanism.
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High 8.2
YesWiki before 4.6.7 Authentication Bypass via ActivityPub Inbox Actor Spoofing
YesWiki before 4.6.7 contains an authentication bypass vulnerability in the ActivityPub inbox that fails to bind the verified HTTP signature signer to the activity actor. Unauthenticated attackers with any ActivityPub keypair can send signed Delete or Update …
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High 7.3
Trusted Domain Project OpenDMARC Multi-Record Set opendmarc_policy_query_dmarc authentication spoofing
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected is the function opendmarc_policy_query_dmarc of the component Multi-Record Set Handler. The manipulation results in authentication bypass by spoofing. The attack can be exe…
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High 7.1
Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet
A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster displa…