CWE-303
Incorrect Implementation of Authentication Algorithm
Description
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-90
CVEs mapped to this weakness (101)
page 5 of 6| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-8922 | Med | 0.28 | 5.4 | 0.00 | May 19, 2026 | A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain… | ||
| CVE-2026-0999 | Med | 0.28 | 5.4 | 0.00 | Feb 16, 2026 | Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MMSA-2025-00548 | ||
| CVE-2025-3230 | Med | 0.28 | 5.4 | 0.00 | May 30, 2025 | Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via… | ||
| CVE-2025-2475 | Med | 0.28 | 5.4 | 0.00 | Apr 14, 2025 | Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials. | ||
| CVE-2024-56128 | Med | 0.28 | 5.3 | 0.01 | Dec 18, 2024 | Incorrect Implementation of Authentication Algorithm in Apache Kafka's SCRAM implementation. Issue Summary: Apache Kafka's implementation of the Salted Challenge Response Authentication Mechanism (SCRAM) did not fully adhere to the requirements of RFC 5802 [1]. Specifically, as… | ||
| CVE-2022-20923 | Med | 0.26 | 4.0 | 0.01 | Sep 8, 2022 | A vulnerability in the IPSec VPN Server authentication functionality of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to bypass authentication controls and access the IPSec VPN network. This vulnerability is due to… | ||
| CVE-2024-32879 | Med | 0.25 | 4.9 | 0.01 | Apr 24, 2024 | Python Social Auth is a social authentication/registration mechanism. Prior to version 5.4.1, due to default case-insensitive collation in MySQL or MariaDB databases, third-party authentication user IDs are not case-sensitive and could cause different IDs to match. This issue… | ||
| CVE-2024-5658 | Med | 0.24 | 4.8 | 0.01 | Jun 6, 2024 | The CraftCMS plugin Two-Factor Authentication through 3.3.3 allows reuse of TOTP tokens multiple times within the validity period. | ||
| CVE-2026-32953 | Med | 0.23 | 4.6 | 0.00 | Mar 20, 2026 | Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device Identifier… | ||
| CVE-2024-41829 | Low | 0.23 | 3.5 | 0.00 | Jul 22, 2024 | In JetBrains TeamCity before 2024.07 an OAuth code for JetBrains Space could be stolen via Space Application connection | ||
| CVE-2025-2571 | Med | 0.20 | 4.2 | 0.00 | May 30, 2025 | Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow. | ||
| CVE-2024-36250 | Low | 0.20 | 3.1 | 0.00 | Nov 9, 2024 | Mattermost versions 9.11.x <= 9.11.2, and 9.5.x <= 9.5.10 fail to protect the mfa code against replay attacks, which allows an attacker to reuse the MFA code within ~30 seconds | ||
| CVE-2024-10214 | Low | 0.16 | 3.5 | 0.00 | Oct 28, 2024 | Mattermost versions 9.11.X <= 9.11.1, 9.5.x <= 9.5.9 icorrectly issues two sessions when using desktop SSO - one in the browser and one in desktop with incorrect settings. | ||
| CVE-2026-59309 | Cri | 0.00 | 9.8 | 0.01 | Jul 30, 2026 | VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system. | ||
| CVE-2026-66028 | Med | 0.00 | 6.7 | 0.00 | Jul 27, 2026 | Ekushey Project Manager CRM through version 5.0 contains a missing uniqueness constraint vulnerability that allows authenticated administrators to create duplicate client accounts with identical email and password credentials. Attackers can exploit the lack of email field… | ||
| CVE-2026-57852 | Med | 0.00 | 5.6 | 0.00 | Jul 20, 2026 | Grav CMS scheduler-webhook plugin contains an authentication bypass vulnerability that allows unauthenticated remote attackers to trigger configured scheduled jobs by exploiting a short-circuit logic flaw in the webhook token validation. Attackers can send a single… | ||
| CVE-2026-50360 | Hig | 0.00 | 8.8 | 0.01 | Jul 14, 2026 | Incorrect implementation of authentication algorithm in Windows SMB Server allows an authorized attacker to elevate privileges over a network. | ||
| CVE-2024-35190 | Med | 0.00 | 5.8 | 0.01 | May 17, 2024 | Asterisk is an open source private branch exchange and telephony toolkit. After upgrade to 18.23.0, ALL unauthorized SIP requests are identified as PJSIP Endpoint of local asterisk server. This vulnerability is fixed in 18.23.1, 20.8.1, and 21.3.1. | ||
| CVE-2023-39953 | Med | 0.00 | 4.8 | 0.01 | Aug 10, 2023 | user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or… | ||
| CVE-2022-41985 | Hig | 0.00 | 8.6 | 0.01 | May 10, 2023 | An authentication bypass vulnerability exists in the Authentication functionality of Weston Embedded uC-FTPs v 1.98.00. A specially crafted set of network packets can lead to authentication bypass and denial of service. An attacker can send a sequence of unauthenticated packets… |
- risk 0.28cvss 5.4epss 0.00
A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain…
- risk 0.28cvss 5.4epss 0.00
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate login method restrictions which allows an authenticated user to bypass SSO-only login requirements via userID-based authentication. Mattermost Advisory ID: MMSA-2025-00548
- risk 0.28cvss 5.4epss 0.00
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via…
- risk 0.28cvss 5.4epss 0.00
Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.
- risk 0.28cvss 5.3epss 0.01
Incorrect Implementation of Authentication Algorithm in Apache Kafka's SCRAM implementation. Issue Summary: Apache Kafka's implementation of the Salted Challenge Response Authentication Mechanism (SCRAM) did not fully adhere to the requirements of RFC 5802 [1]. Specifically, as…
- risk 0.26cvss 4.0epss 0.01
A vulnerability in the IPSec VPN Server authentication functionality of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to bypass authentication controls and access the IPSec VPN network. This vulnerability is due to…
- risk 0.25cvss 4.9epss 0.01
Python Social Auth is a social authentication/registration mechanism. Prior to version 5.4.1, due to default case-insensitive collation in MySQL or MariaDB databases, third-party authentication user IDs are not case-sensitive and could cause different IDs to match. This issue…
- risk 0.24cvss 4.8epss 0.01
The CraftCMS plugin Two-Factor Authentication through 3.3.3 allows reuse of TOTP tokens multiple times within the validity period.
- risk 0.23cvss 4.6epss 0.00
Tillitis TKey Client package is a Go package for a TKey client. Versions 1.2.0 and below contain a critical bug in the tkeyclient Go module which causes 1 out of every 256 User Supplied Secrets (USS) to be silently ignored, producing the same Compound Device Identifier…
- risk 0.23cvss 3.5epss 0.00
In JetBrains TeamCity before 2024.07 an OAuth code for JetBrains Space could be stolen via Space Application connection
- risk 0.20cvss 4.2epss 0.00
Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.
- risk 0.20cvss 3.1epss 0.00
Mattermost versions 9.11.x <= 9.11.2, and 9.5.x <= 9.5.10 fail to protect the mfa code against replay attacks, which allows an attacker to reuse the MFA code within ~30 seconds
- risk 0.16cvss 3.5epss 0.00
Mattermost versions 9.11.X <= 9.11.1, 9.5.x <= 9.5.9 icorrectly issues two sessions when using desktop SSO - one in the browser and one in desktop with incorrect settings.
- risk 0.00cvss 9.8epss 0.01
VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system.
- risk 0.00cvss 6.7epss 0.00
Ekushey Project Manager CRM through version 5.0 contains a missing uniqueness constraint vulnerability that allows authenticated administrators to create duplicate client accounts with identical email and password credentials. Attackers can exploit the lack of email field…
- risk 0.00cvss 5.6epss 0.00
Grav CMS scheduler-webhook plugin contains an authentication bypass vulnerability that allows unauthenticated remote attackers to trigger configured scheduled jobs by exploiting a short-circuit logic flaw in the webhook token validation. Attackers can send a single…
- risk 0.00cvss 8.8epss 0.01
Incorrect implementation of authentication algorithm in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
- risk 0.00cvss 5.8epss 0.01
Asterisk is an open source private branch exchange and telephony toolkit. After upgrade to 18.23.0, ALL unauthorized SIP requests are identified as PJSIP Endpoint of local asterisk server. This vulnerability is fixed in 18.23.1, 20.8.1, and 21.3.1.
- risk 0.00cvss 4.8epss 0.01
user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or…
- risk 0.00cvss 8.6epss 0.01
An authentication bypass vulnerability exists in the Authentication functionality of Weston Embedded uC-FTPs v 1.98.00. A specially crafted set of network packets can lead to authentication bypass and denial of service. An attacker can send a sequence of unauthenticated packets…