CWE-287
Improper Authentication
Description
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-114 · CAPEC-115 · CAPEC-151 · CAPEC-194 · CAPEC-22 · CAPEC-57 · CAPEC-593 · CAPEC-633 · CAPEC-650 · CAPEC-94
CVEs mapped to this weakness (1,670)
page 20 of 84| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2014-9952 | Hig | 0.51 | 7.8 | 0.00 | Jun 6, 2017 | In the Secure File System in all Android releases from CAF using the Linux kernel, a capture-replay vulnerability could potentially exist. | |
| CVE-2016-1278 | Hig | 0.51 | 7.8 | 0.00 | Aug 5, 2016 | Juniper Junos OS before 12.1X46-D50 on SRX Series devices reverts to "safe mode" authentication and allows root CLI logins without a password after a failed upgrade to 12.1X46, which might allow local users to gain privileges by leveraging use of the "request system software" command with the "partition" option. | |
| CVE-2015-7974 | Hig | 0.51 | 7.7 | 0.11 | Jan 26, 2016 | NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key." | |
| CVE-2026-33175 | Hig | 0.50 | 8.8 | 0.00 | Apr 3, 2026 | OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. Prior to version 17.4.0, an authentication bypass vulnerability in oauthenticator allows an attacker with an unverified email address on an Auth0 tenant to login to JupyterHub. When email is used as the usrname_claim, this gives users control over their username and the possibility of account takeover. This issue has been patched in version 17.4.0. | |
| CVE-2026-33898 | Hig | 0.50 | 8.8 | 0.00 | Mar 27, 2026 | Incus is a system container and virtual machine manager. Prior to version 6.23.0, the web server spawned by `incus webui` incorrectly validates the authentication token such that an invalid value will be accepted. `incus webui` runs a local web server on a random localhost port. For authentication, it provides the user with a URL containing an authentication token. When accessed with that token, Incus creates a cookie persisting that token without needing to include it in subsequent HTTP requests. While the Incus client correctly validates the value of the cookie, it does not correctly validate the token when passed int the URL. This allows for an attacker able to locate and talk to the temporary web server on localhost to have as much access to Incus as the user who ran `incus webui`. This can lead to privilege escalation by another local user or an access to the user's Incus instances and possibly system resources by a remote attack able to trick the local user into interacting with the Incus UI web server. Version 6.23.0 patches the issue. | |
| CVE-2025-61679 | Hig | 0.50 | 7.7 | 0.00 | Oct 3, 2025 | Anyquery is an SQL query engine built on top of SQLite. Versions 0.4.3 and below allow attackers who have already gained access to localhost, even with low privileges, to use the http server through the port unauthenticated, and access private integration data like emails, without any warning of a foreign login from the provider. This issue is fixed in version 0.4.4. | |
| CVE-2025-54888 | Hig | 0.50 | — | 0.00 | Aug 9, 2025 | Fedify is a TypeScript library for building federated server apps powered by ActivityPub. In versions below 1.3.20, 1.4.0-dev.585 through 1.4.12, 1.5.0-dev.636 through 1.5.4, 1.6.0-dev.754 through 1.6.7, 1.7.0-pr.251.885 through 1.7.8 and 1.8.0-dev.909 through 1.8.4, an authentication bypass vulnerability allows any unauthenticated attacker to impersonate any ActivityPub actor by sending forged activities signed with their own keys. Activities are processed before verifying the signing key belongs to the claimed actor, enabling complete actor impersonation across all Fedify instances. This is fixed in versions 1.3.20, 1.4.13, 1.5.5, 1.6.8, 1.7.9 and 1.8.5. | |
| CVE-2025-2230 | Hig | 0.50 | 7.7 | 0.00 | Mar 13, 2025 | A flaw exists in the Windows login flow where an AuthContext token can be exploited for replay attacks and authentication bypass. | |
| CVE-2024-55954 | Hig | 0.50 | 8.7 | 0.00 | Jan 16, 2025 | OpenObserve is a cloud-native observability platform. A vulnerability in the user management endpoint `/api/{org_id}/users/{email_id}` allows an "Admin" role user to remove a "Root" user from the organization. This violates the intended privilege hierarchy, enabling a non-root user to remove the highest-privileged account. Due to insufficient role checks, the `remove_user_from_org` function does not prevent an "Admin" user from removing a "Root" user. As a result, an attacker with an "Admin" role can remove critical "Root" users, potentially gaining effective full control by eliminating the highest-privileged accounts. The `DELETE /api/{org_id}/users/{email_id}` endpoint is affected. This issue has been addressed in release version `0.14.1` and all users are advised to upgrade. There are no known workarounds for this vulnerability. | |
| CVE-2024-47080 | Hig | 0.50 | — | 0.01 | Oct 15, 2024 | matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. In matrix-js-sdk versions versions 9.11.0 through 34.7.0, the method `MatrixClient.sendSharedHistoryKeys` is vulnerable to interception by malicious homeservers. The method was introduced by MSC3061) and is commonly used to share historical message keys with newly invited users, granting them access to past messages in the room. However, it unconditionally sends these "shared" keys to all of the invited user's devices, regardless of whether the user's cryptographic identity is verified or whether the user's devices are signed by that identity. This allows the attacker to potentially inject its own devices to receive sensitive historical keys without proper security checks. Note that this only affects clients running the SDK with the legacy crypto stack. Clients using the new Rust cryptography stack (i.e. those that call `MatrixClient.initRustCrypto()` instead of `MatrixClient.initCrypto()`) are unaffected by this vulnerability, because `MatrixClient.sendSharedHistoryKeys()` raises an exception in such environments. The vulnerability was fixed in matrix-js-sdk 34.8.0 by removing the vulnerable functionality. As a workaround, remove use of affected functionality from clients. | |
| CVE-2017-10784 | Hig | 0.50 | 8.8 | 0.02 | Sep 19, 2017 | The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name. | |
| CVE-2017-8495 | Hig | 0.50 | 7.5 | 0.16 | Jul 11, 2017 | Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre. | |
| CVE-2016-4953 | Hig | 0.50 | 7.5 | 0.14 | Jul 5, 2016 | ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time. | |
| CVE-2026-44478 | Hig | 0.49 | 7.5 | 0.00 | May 13, 2026 | 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. However, GET /v1/onboarding/config still leaks all infrastructure secrets in plaintext to unauthenticated users when the ONBOARDING_RECOVERY_TOKEN stored in the database is an empty string. This vulnerability is fixed in 2026.4.0. | |
| CVE-2026-42855 | Hig | 0.49 | 7.5 | 0.00 | May 12, 2026 | 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 the client's Authorization header, without verifying that it matches the actual requested URI. This allows an attacker who possesses any valid digest response (computed for URI-A) to authenticate requests to a completely different protected URI (URI-B), bypassing per-resource access control. This vulnerability is fixed in 3.3.8. | |
| CVE-2026-23708 | Hig | 0.49 | 7.5 | 0.00 | Apr 14, 2026 | A improper authentication vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5.0 through 7.5.2, FortiSOAR on-premise 7.6.0 through 7.6.3, FortiSOAR on-premise 7.5.0 through 7.5.2 may allow an unauthenticated attacker to bypass authentication via replaying captured 2FA request. The attack requires being able to intercept and decrypt authentication traffic and precise timing to replay the request before token expiration, which raises the attack complexity. | |
| CVE-2026-40177 | Hig | 0.49 | 7.5 | 0.00 | Apr 10, 2026 | ajenti.plugin.core defines all necessary core elements to allow Ajenti to run properly. Prior to 0.112, if the 2FA was activated, it was possible to bypass the password authentication This vulnerability is fixed in 0.112. | |
| CVE-2026-34834 | Hig | 0.49 | 7.5 | 0.00 | Apr 2, 2026 | Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to version 1.4.10, the verifyIdentity() function contained logic that returned true if no session cookies were present. This allowed unauthenticated attackers to bypass security checks and access/modify user settings via the /api/settings endpoint by providing arbitrary headers. This issue has been patched in version 1.4.10. | |
| CVE-2025-20083 | Hig | 0.49 | 7.5 | 0.00 | May 13, 2025 | Improper authentication in the firmware for the Intel(R) Slim Bootloader may allow a privileged user to potentially enable escalation of privilege via local access. | |
| CVE-2025-46573 | Hig | 0.49 | — | 0.00 | May 6, 2025 | passport-wsfed-saml2 provides passport strategy for both WS-fed and SAML2 protocol. A vulnerability present starting in version 3.0.5 up to and including version 4.6.3 allows an attacker to impersonate any user during SAML authentication by tampering with a valid SAML response. This can be done by adding attributes to the response. Users are affected specifically when the service provider is using `passport-wsfed-saml2` and a valid SAML Response signed by the Identity Provider can be obtained. Version 4.6.4 contains a fix for the vulnerability. |
- risk 0.51cvss 7.8epss 0.00
In the Secure File System in all Android releases from CAF using the Linux kernel, a capture-replay vulnerability could potentially exist.
- risk 0.51cvss 7.8epss 0.00
Juniper Junos OS before 12.1X46-D50 on SRX Series devices reverts to "safe mode" authentication and allows root CLI logins without a password after a failed upgrade to 12.1X46, which might allow local users to gain privileges by leveraging use of the "request system software" command with the "partition" option.
- risk 0.51cvss 7.7epss 0.11
NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
- risk 0.50cvss 8.8epss 0.00
OAuthenticator is software that allows OAuth2 identity providers to be plugged in and used with JupyterHub. Prior to version 17.4.0, an authentication bypass vulnerability in oauthenticator allows an attacker with an unverified email address on an Auth0 tenant to login to JupyterHub. When email is used as the usrname_claim, this gives users control over their username and the possibility of account takeover. This issue has been patched in version 17.4.0.
- risk 0.50cvss 8.8epss 0.00
Incus is a system container and virtual machine manager. Prior to version 6.23.0, the web server spawned by `incus webui` incorrectly validates the authentication token such that an invalid value will be accepted. `incus webui` runs a local web server on a random localhost port. For authentication, it provides the user with a URL containing an authentication token. When accessed with that token, Incus creates a cookie persisting that token without needing to include it in subsequent HTTP requests. While the Incus client correctly validates the value of the cookie, it does not correctly validate the token when passed int the URL. This allows for an attacker able to locate and talk to the temporary web server on localhost to have as much access to Incus as the user who ran `incus webui`. This can lead to privilege escalation by another local user or an access to the user's Incus instances and possibly system resources by a remote attack able to trick the local user into interacting with the Incus UI web server. Version 6.23.0 patches the issue.
- risk 0.50cvss 7.7epss 0.00
Anyquery is an SQL query engine built on top of SQLite. Versions 0.4.3 and below allow attackers who have already gained access to localhost, even with low privileges, to use the http server through the port unauthenticated, and access private integration data like emails, without any warning of a foreign login from the provider. This issue is fixed in version 0.4.4.
- risk 0.50cvss —epss 0.00
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. In versions below 1.3.20, 1.4.0-dev.585 through 1.4.12, 1.5.0-dev.636 through 1.5.4, 1.6.0-dev.754 through 1.6.7, 1.7.0-pr.251.885 through 1.7.8 and 1.8.0-dev.909 through 1.8.4, an authentication bypass vulnerability allows any unauthenticated attacker to impersonate any ActivityPub actor by sending forged activities signed with their own keys. Activities are processed before verifying the signing key belongs to the claimed actor, enabling complete actor impersonation across all Fedify instances. This is fixed in versions 1.3.20, 1.4.13, 1.5.5, 1.6.8, 1.7.9 and 1.8.5.
- risk 0.50cvss 7.7epss 0.00
A flaw exists in the Windows login flow where an AuthContext token can be exploited for replay attacks and authentication bypass.
- risk 0.50cvss 8.7epss 0.00
OpenObserve is a cloud-native observability platform. A vulnerability in the user management endpoint `/api/{org_id}/users/{email_id}` allows an "Admin" role user to remove a "Root" user from the organization. This violates the intended privilege hierarchy, enabling a non-root user to remove the highest-privileged account. Due to insufficient role checks, the `remove_user_from_org` function does not prevent an "Admin" user from removing a "Root" user. As a result, an attacker with an "Admin" role can remove critical "Root" users, potentially gaining effective full control by eliminating the highest-privileged accounts. The `DELETE /api/{org_id}/users/{email_id}` endpoint is affected. This issue has been addressed in release version `0.14.1` and all users are advised to upgrade. There are no known workarounds for this vulnerability.
- risk 0.50cvss —epss 0.01
matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. In matrix-js-sdk versions versions 9.11.0 through 34.7.0, the method `MatrixClient.sendSharedHistoryKeys` is vulnerable to interception by malicious homeservers. The method was introduced by MSC3061) and is commonly used to share historical message keys with newly invited users, granting them access to past messages in the room. However, it unconditionally sends these "shared" keys to all of the invited user's devices, regardless of whether the user's cryptographic identity is verified or whether the user's devices are signed by that identity. This allows the attacker to potentially inject its own devices to receive sensitive historical keys without proper security checks. Note that this only affects clients running the SDK with the legacy crypto stack. Clients using the new Rust cryptography stack (i.e. those that call `MatrixClient.initRustCrypto()` instead of `MatrixClient.initCrypto()`) are unaffected by this vulnerability, because `MatrixClient.sendSharedHistoryKeys()` raises an exception in such environments. The vulnerability was fixed in matrix-js-sdk 34.8.0 by removing the vulnerable functionality. As a workaround, remove use of affected functionality from clients.
- risk 0.50cvss 8.8epss 0.02
The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.
- risk 0.50cvss 7.5epss 0.16
Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to bypass Extended Protection for Authentication when Kerberos fails to prevent tampering with the SNAME field during ticket exchange, aka "Kerberos SNAME Security Feature Bypass Vulnerability" or Orpheus' Lyre.
- risk 0.50cvss 7.5epss 0.14
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.
- risk 0.49cvss 7.5epss 0.00
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. However, GET /v1/onboarding/config still leaks all infrastructure secrets in plaintext to unauthenticated users when the ONBOARDING_RECOVERY_TOKEN stored in the database is an empty string. This vulnerability is fixed in 2026.4.0.
- risk 0.49cvss 7.5epss 0.00
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 the client's Authorization header, without verifying that it matches the actual requested URI. This allows an attacker who possesses any valid digest response (computed for URI-A) to authenticate requests to a completely different protected URI (URI-B), bypassing per-resource access control. This vulnerability is fixed in 3.3.8.
- risk 0.49cvss 7.5epss 0.00
A improper authentication vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5.0 through 7.5.2, FortiSOAR on-premise 7.6.0 through 7.6.3, FortiSOAR on-premise 7.5.0 through 7.5.2 may allow an unauthenticated attacker to bypass authentication via replaying captured 2FA request. The attack requires being able to intercept and decrypt authentication traffic and precise timing to replay the request before token expiration, which raises the attack complexity.
- risk 0.49cvss 7.5epss 0.00
ajenti.plugin.core defines all necessary core elements to allow Ajenti to run properly. Prior to 0.112, if the 2FA was activated, it was possible to bypass the password authentication This vulnerability is fixed in 0.112.
- risk 0.49cvss 7.5epss 0.00
Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to version 1.4.10, the verifyIdentity() function contained logic that returned true if no session cookies were present. This allowed unauthenticated attackers to bypass security checks and access/modify user settings via the /api/settings endpoint by providing arbitrary headers. This issue has been patched in version 1.4.10.
- risk 0.49cvss 7.5epss 0.00
Improper authentication in the firmware for the Intel(R) Slim Bootloader may allow a privileged user to potentially enable escalation of privilege via local access.
- risk 0.49cvss —epss 0.00
passport-wsfed-saml2 provides passport strategy for both WS-fed and SAML2 protocol. A vulnerability present starting in version 3.0.5 up to and including version 4.6.3 allows an attacker to impersonate any user during SAML authentication by tampering with a valid SAML response. This can be done by adding attributes to the response. Users are affected specifically when the service provider is using `passport-wsfed-saml2` and a valid SAML Response signed by the Identity Provider can be obtained. Version 4.6.4 contains a fix for the vulnerability.