Weakness (CWE)
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it (1 mitigation)
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Architecture and Design
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Source: MITRE CWE-287
3,169 results · Feed
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Critical —
MCP Gateway: Authority-injection and JWT/session bypass via the unauthenticated router hair-pin "router-key" / "mcp-init-host" path
## Summary The MCP router (ext_proc) exposes an `initialize`-method code path that, when a request carries an `mcp-init-host` header, bypasses the gateway JWT session validator and rewrites the upstream `:authority` header to whatever the caller chooses, gate…
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Critical 9.8CVE-2026-45434 EPSS 21%
Apache OFBiz: Authentication Bypass via Password-Change Logic Flaw Leading to RCE
Improper Authentication vulnerability in Apache OFBiz via Password-Change Logic Flaw Leading to Remote Code Execution This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue.
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Medium 5.3
Apache OFBiz: Cookie Manipulation Allows Authenticated JWT Forgery and Account Impersonation
Improper Authentication vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue.
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Critical 9.8
An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7…
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Critical 10.0
Azure Local Disconnected Operations (ALDO) Elevation of Privilege Vulnerability
Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges over a network.
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High —
eduMFA Passkeys: missing expiration flag may allow replay attacks and reuse of old challenges
### Impact In eduMFA < 2.9.1 userless Passkey/WebAuthn challenges might be replayed and do not expire ### Patches Fixed in eduMFA >= 2.9.1 by adding validity information to the userless challenges. ### Workarounds No known workarounds besides disabling userle…
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Medium 5.3
Sanluan PublicCMS Trade Address Query TradeAddressListDirective.java execute missing authentication
A weakness has been identified in Sanluan PublicCMS 5.202506.d. This issue affects the function execute of the file publiccms-trade/src/main/java/com/publiccms/views/directive/trade/TradeAddressListDirective.java of the component Trade Address Query Handler. …
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Critical 9.1CVE-2026-44551 Scanner template
Open WebUI: LDAP Empty Password Authentication Bypass
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP authentication endpoint does not validate that the submitted password is non-empty before performing a Simple Bind against the LDAP ser…
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Critical 9.8
Receive Notifications After Form Submitting – Form Notify for Any Forms <= 1.1.10 - Unauthenticated Authentication Bypass via LINE OAuth Callback
The Form Notify plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.1.10. This is due to the plugin trusting user-controlled cookie data to determine which WordPress account to authenticate after a LINE OAuth login. W…
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Medium —
slack-go `SecretsVerifier` accepts empty signing secret without precondition
`SecretsVerifier` in slack-go/slack before v0.23.1 accepts an empty signing secret without error. If an application is misconfigured (e.g., an unset or empty `SLACK_SIGNING_SECRET`), `NewSecretsVerifier` builds an HMAC-SHA256 keyed with an empty string, allow…
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High 8.8
Crabbox < v0.12.0 Authentication Bypass via Header Spoofing
Crabbox prior to v0.12.0 contains an authentication bypass vulnerability that allows non-admin shared-token callers to impersonate other owners or organizations by spoofing identity headers. Attackers can inject malicious X-Crabbox-Owner and X-Crabbox-Org hea…
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Critical 10.0
Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The secti…
KEV May 14, 2026 -
Critical 9.8
Burst Statistics 3.4.0 - 3.4.1.1 - Authentication Bypass to Admin Account Takeover
The Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) plugin for WordPress is vulnerable to Authentication Bypass in versions 3.4.0 to 3.4.1.1. This is due to incorrect return-value handling in the `is_mainwp_authenticated…
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High 7.5
hoppscotch: Unauthenticated Onboarding Config Disclosure via Empty Recovery Token
hoppscotch is an open source API development ecosystem. The fix for CVE-2026-28215 in version 2026.2.0 addresses the unauthenticated POST /v1/onboarding/config endpoint by checking onboardingCompleted and canReRunOnboarding before allowing config overwrites. …
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High 8.1
azureauthextension Authenticate method does not validate bearer tokens, allowing auth bypass via replay
azureauthextension is the Azure Authenticator Extension. From 0.124.0 to 0.150.0, a server-side authentication bypass in azureauthextension allows any party who holds a single valid Azure access token for any scope the collector's configured identity can mint…
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Critical 9.1CVE-2026-44351 Public exploit
fast-jwt: Empty HMAC secret accepted via async key resolver - JWT auth bypass
fast-jwt provides fast JSON Web Token (JWT) implementation. Prior to 6.2.4, a critical authentication-bypass vulnerability in fast-jwt's async key-resolver flow allows any unauthenticated attacker to forge arbitrary JWTs that are accepted as authentic. When t…
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Critical 9.6
ChurchCRM: Incomplete fix for CVE-2026-40582: public API login still bypasses 2FA and account lockout in ChurchCRM 7.2.2
ChurchCRM is an open-source church management system. From 7.2.0 to 7.2.2, The fix for CVE-2026-4058 is incomplete. The hardening commit was merged and then silently stripped from src/api/routes/public/public-user.php by an unrelated PR before any 7.2.x tag w…
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High 7.5
arduino-esp32: Digest authentication URI mismatch bypass in WebServer allows cross-resource replay attack
arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from…
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Critical 9.1
Pingvin Share X: TOTP Authentication Bypass via Password-only Login
Pingvin Share X is a secure and easy self-hosted file sharing platform. From 1.14.1 to 1.16.2, a critical authentication bypass vulnerability allows an attacker who has obtained a valid username and password to skip the second-factor authentication (TOTP) req…
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Medium 6.1CVE-2026-44166 Public exploit
Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade
Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the O…
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Critical 9.1
Azure SDK for Java Security Feature Bypass Vulnerability
The Java Key Vault Keys library in the Azure SDK for Java contains an issue in the local cryptographic verification path where authentication tag comparison was implemented incorrectly. In affected applications that use the vulnerable local cryptography path,…
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Critical 9.8CVE-2026-43512 Public exploit
Apache Tomcat: Digest authenticator will authenticate any unknown user
DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from…
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High 7.3
inkeep agents runAuth Middleware runAuth.ts createDevContext authentication bypass
A vulnerability was detected in inkeep agents 0.58.14. This vulnerability affects the function createDevContext of the file agents-api/src/middleware/runAuth.ts of the component runAuth Middleware. Performing a manipulation results in authentication bypass us…
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Critical 10.0
SOCFortress CoPilot: Hardcoded JWT secret allows unauthenticated full admin compromise and lateral movement into all integrated SOC tools
SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. Prior to 0.1.57, SOCFortress CoPilot ships a hardcoded JWT signing secret as a fallback value in backend/app/auth/utils.py:28 and ships it verbatim in .env…
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Medium 5.3
OpenClaw < 2026.4.22 - Authentication Bypass in Gateway Control UI Bootstrap Config Endpoint
OpenClaw before 2026.4.22 contains an authentication bypass vulnerability in the Control UI bootstrap config endpoint that allows unauthenticated attackers to read sensitive configuration fields. Attackers can access the bootstrap config route without a valid…
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High 7.3
OpenClaw bluebubbles Webhook monitor.ts handleBlueBubblesWebhookRequest improper authentication
A vulnerability was detected in OpenClaw up to 2026.1.24. The impacted element is the function handleBlueBubblesWebhookRequest of the file extensions/bluebubbles/src/monitor.ts of the component bluebubbles Webhook. Performing a manipulation results in imprope…
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Medium 5.3
Industrial Application Software IAS Canias ERP Login RMI improper authentication
A vulnerability was identified in Industrial Application Software IAS Canias ERP 8.03. This impacts an unknown function of the component Login RMI Interface. The manipulation of the argument clientVersion leads to improper authentication. It is possible to in…
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High 7.3
Industrial Application Software IAS Canias ERP Java RMI Session Management iasServerRemoteInterface.doAction improper authentication
A vulnerability was identified in Industrial Application Software IAS Canias ERP 8.03. This issue affects the function iasServerRemoteInterface.doAction of the component Java RMI Session Management. Such manipulation leads to improper authentication. The atta…
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Medium 5.3
Industrial Application Software IAS Canias ERP RMI doAction improper authentication
A vulnerability was found in Industrial Application Software IAS Canias ERP 8.03. This affects the function doAction of the component RMI Interface. The manipulation of the argument sessionId results in improper authentication. It is possible to launch the at…
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Medium 6.3
UGREEN CM933 Administrative missing authentication
A security vulnerability has been detected in UGREEN CM933 1.1.59.4319. The impacted element is an unknown function of the component Administrative Interface. Such manipulation leads to missing authentication. The attack requires being on the local network. Y…
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Critical 9.1
auth: Patreon provider assigns the same local user ID to every authenticated Patreon account, enabling cross‑user impersonation
auth provides authentication via oauth2, direct and email. From versions 1.18.0 to before 1.25.2 and 2.0.0 to before 2.1.2, the Patreon OAuth provider maps every authenticated Patreon account to the same local user.ID, instead of deriving a unique ID from the…
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Critical 10.0
openvpn-auth-oauth2 returns FUNC_SUCCESS on client-deny, allowing unauthenticated VPN access
openvpn-auth-oauth2 is a plugin/management interface client for OpenVPN server to handle an OIDC based single sign-on (SSO) auth flows. From version 1.26.3 to before version 1.27.3, when openvpn-auth-oauth2 is deployed in the experimental plugin mode (shared …
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Critical 9.3
Nhost Vulnerable to Account Takeover via OAuth Email Verification Bypass
Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.49.1, Nhost automatically links an incoming OAuth identity to an existing Nhost account when the email addresses match. This is only safe when the email has been verified by the OAu…
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Medium 6.8
Admidio: OIDC Token Introspection Endpoint Returns Active for All Tokens Without Validation
Admidio is an open-source user management solution. Prior to version 5.0.9, the OIDC token introspection endpoint (/modules/sso/index.php/oidc/introspect) always returns {"active": true} for every request, regardless of whether a valid token is provided, whet…
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Low 2.3
Incus OVN TLS verification accepts peer-supplied roots and permits endpoint impersonation
Incus is a system container and virtual machine manager. In versions before 7.0.0, broken TLS validation logic in the OVN database connection logic can allow connections to an attacker's OVN database. The OVN client implementations disable Go standard TLS ser…
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Critical 9.8
OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation
OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead…
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Medium 5.3
PicoTronica e-Clinic Healthcare System ECHS API Endpoint patient-records missing authentication
A vulnerability was detected in PicoTronica e-Clinic Healthcare System ECHS 5.7. The affected element is an unknown function of the file /cdemos/echs/api/v2/patient-records of the component API Endpoint. The manipulation results in missing authentication. The…
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High 8.8
Quarkus authorization bypass via semicolon path normalization inconsistency
Quarkus is a Java framework for building cloud-native applications. In versions prior to 3.20.6.1, 3.27.3.1, 3.33.1.1, 3.35.1.1, 3.34.7, and 3.35.2, a path normalization inconsistency between the security layer and the routing layer allows unauthenticated or …
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High 8.2
CoreDNS TSIG authentication bypass on gRPC, QUIC, DoH, and DoH3 transports
CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG authentication. For gRPC and QUIC, the server checks whether the TSIG key name exists in the configuration but …
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High 8.7
CoreDNS TSIG authentication bypass on encrypted DNS transports
CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports (DoT, DoH, DoH3, DoQ, and gRPC) because it trusts the transport writer's TsigStatus() instead of performing verification itse…