Common Weakness Enumeration
CWE-305
AllowedAuthentication Bypass by Primary Weakness
Abstraction: Base · Status: Draft
The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
281 vulnerabilities reference this CWE, most recent first.
CVE-2026-28536 (GCVE-0-2026-28536)
Vulnerability from cvelistv5 – Published: 2026-03-05 07:10 – Updated: 2026-03-05 15:17
VLAI
EPSS
VEX
Summary
Authentication bypass vulnerability in the device authentication module. Impact: Successful exploitation of this vulnerability will affect integrity and confidentiality.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
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CVE-2026-25555 (GCVE-0-2026-25555)
Vulnerability from cvelistv5 – Published: 2026-06-08 16:53 – Updated: 2026-07-14 15:53 X_Open Source
VLAI
EPSS
VEX
Title
OpenBullet2 0.3.2 Authentication Bypass via X-Api-Key Header
Summary
OpenBullet2 through version 0.3.2 contains an authentication bypass vulnerability in the API key authentication middleware that allows unauthenticated attackers to gain admin access by supplying an empty X-Api-Key header value. Attackers can exploit the middleware's comparison of the supplied header against an empty AdminApiKey default string to access the admin console and all API endpoints without valid credentials.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://hackernoon.com/one-empty-header-to-admin-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/openbullet2-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| openbullet | openbullet2 |
Affected:
0 , ≤ 0.3.2
(semver)
|
Date Public
2026-06-04 00:00
Credits
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CVE-2026-22153 (GCVE-0-2026-22153)
Vulnerability from cvelistv5 – Published: 2026-02-10 15:39 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Summary
An Authentication Bypass by Primary Weakness vulnerability [CWE-305] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4 may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, when the remote LDAP server is configured in a specific way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Improper access control
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Fortinet | FortiOS |
Affected:
7.6.0 , ≤ 7.6.4
(semver)
cpe:2.3:o:fortinet:fortios:7.6.4:*:*:*:*:*:*:* cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:* cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:* cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:* cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:* |
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CVE-2026-20152 (GCVE-0-2026-20152)
Vulnerability from cvelistv5 – Published: 2026-04-15 16:03 – Updated: 2026-04-16 19:05
VLAI
EPSS
VEX
Title
Cisco Secure Web Appliance Authentication Service Traffic Bypass Vulnerability
Summary
A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements.
This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted through the device.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Secure Web Appliance |
Affected:
11.8.0-453
Affected: 12.5.3-002 Affected: 12.0.3-007 Affected: 12.0.3-005 Affected: 14.1.0-032 Affected: 14.1.0-047 Affected: 14.1.0-041 Affected: 12.0.4-002 Affected: 14.0.2-012 Affected: 11.8.0-414 Affected: 12.0.1-268 Affected: 11.8.1-023 Affected: 11.8.3-021 Affected: 11.8.3-018 Affected: 12.5.1-011 Affected: 11.8.4-004 Affected: 12.5.2-007 Affected: 12.5.2-011 Affected: 14.5.0-498 Affected: 12.5.4-005 Affected: 12.5.4-011 Affected: 12.0.5-011 Affected: 14.0.3-014 Affected: 12.5.5-004 Affected: 12.5.5-005 Affected: 12.5.5-008 Affected: 14.0.4-005 Affected: 14.5.1-008 Affected: 14.5.1-016 Affected: 15.0.0-355 Affected: 15.0.0-322 Affected: 12.5.6-008 Affected: 15.1.0-287 Affected: 14.5.2-011 Affected: 15.2.0-116 Affected: 14.0.5-007 Affected: 15.2.0-164 Affected: 14.5.1-510 Affected: 12.0.2-012 Affected: 12.0.2-004 Affected: 14.5.1-607 Affected: 14.5.3-033 Affected: 15.0.1-004 Affected: 15.2.1-011 Affected: 14.5.0-673 Affected: 14.5.0-537 Affected: 12.0.1-334 Affected: 14.0.1-503 Affected: 14.0.1-053 Affected: 11.8.0-429 Affected: 14.0.1-040 Affected: 14.0.1-014 Affected: 12.5.1-043 Affected: 15.2.2-009 Affected: 15.2.3-007 Affected: 15.2.4-022 Affected: 15.2.5-011 Affected: 15.2.5-013 Affected: 14.6.0-108 |
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CVE-2026-10539 (GCVE-0-2026-10539)
Vulnerability from cvelistv5 – Published: 2026-07-01 07:55 – Updated: 2026-07-01 12:29
VLAI
EPSS
VEX
Title
Unauthenticated command injection in Control-M/Server communication command
Summary
A Control-M/Server communication command does not sufficiently filter or sanitize user-supplied input. Under certain conditions, this issue may allow an unauthenticated attacker to execute unauthorized commands on the affected server, potentially leading to compromise of the server.
This vulnerability affects Control-M/Server versions 9.0.20.x to 9.0.21.200 (included) and potentially earlier unsupported versions.
Severity
9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BMC | Control-M/Server |
Unaffected:
9.0.21.300
(semver)
Affected: 9.0.20 , ≤ 9.0.21.200 (semver) |
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CVE-2026-9798 (GCVE-0-2026-9798)
Vulnerability from cvelistv5 – Published: 2026-05-28 04:37 – Updated: 2026-05-29 18:30
VLAI
EPSS
VEX
Title
Keycloak: keycloak: brute-force protection bypass in ciba flow
Summary
A flaw was found in Keycloak, an open-source identity and access management solution. When a user account is temporarily locked due to repeated failed login attempts, an attacker with valid client credentials can exploit the Client-Initiated Backchannel Authentication (CIBA) flow to bypass this brute-force protection. This allows continued authentication attempts and token issuance even when the account should be locked, potentially enabling further unauthorized access attempts.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-9798 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2482470 | issue-trackingx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Build of Keycloak |
cpe:/a:redhat:build_keycloak: |
Date Public
2026-05-28 03:53
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CVE-2026-9597 (GCVE-0-2026-9597)
Vulnerability from cvelistv5 – Published: 2026-07-13 08:17 – Updated: 2026-07-13 13:55
VLAI
EPSS
VEX
Title
Deactivated guest accounts can authenticate via magic-link token in Mattermost REST API login endpoint
Summary
Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4 fail to verify whether a guest account is deactivated before creating a session in the magic-link token login path, which allows a deactivated guest user to obtain a fully functional session via a magic-link token issued prior to deactivation.. Mattermost Advisory ID: MMSA-2026-00681
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - – Authentication Bypass by Primary Weakness
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.7.0 , ≤ 11.7.2
(semver)
Affected: 11.6.0 , ≤ 11.6.4 (semver) Unaffected: 11.8.0 Unaffected: 11.7.3 Unaffected: 11.6.5 |
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CVE-2026-9571 (GCVE-0-2026-9571)
Vulnerability from cvelistv5 – Published: 2026-07-13 07:50 – Updated: 2026-07-15 04:00
VLAI
EPSS
VEX
Title
Deactivated user accounts can continue to obtain valid OAuth access tokens via refresh token grant in Mattermost
Summary
Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to invalidate OAuth refresh tokens upon user account deactivation, which allows a deactivated user or an attacker in possession of a valid refresh token to obtain new functional access tokens via the OAuth refresh token grant endpoint.. Mattermost Advisory ID: MMSA-2026-00680
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - – Authentication Bypass by Primary Weakness
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.7.0 , ≤ 11.7.2
(semver)
Affected: 11.6.0 , ≤ 11.6.4 (semver) Affected: 10.11.0 , ≤ 10.11.19 (semver) Unaffected: 11.8.0 Unaffected: 11.7.3 Unaffected: 11.6.5 Unaffected: 10.11.20 |
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CVE-2026-9047 (GCVE-0-2026-9047)
Vulnerability from cvelistv5 – Published: 2026-05-22 15:18 – Updated: 2026-05-22 16:58
VLAI
EPSS
VEX
Summary
Improper handling of factor key state in the multi-factor authentication management feature in Devolutions Server allows an attacker with knowledge of a user's password to bypass the user's multi-factor authentication after the user reconfigures their factors.
This issue affects :
* Devolutions Server 2026.1.6.0 through 2026.1.16.0
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Devolutions | Server |
Affected:
2026.1.6.0 , ≤ 2026.1.16.0
(custom)
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CVE-2026-6334 (GCVE-0-2026-6334)
Vulnerability from cvelistv5 – Published: 2026-05-18 06:33 – Updated: 2026-05-18 14:36
VLAI
EPSS
VEX
Title
OAuth authorization code client binding not enforced during token redemption in Mattermost
Summary
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13 fail to enforce client identity binding during the OAuth authorization code redemption flow which allows an authenticated OAuth client to redeem authorization codes issued to a different client via a crafted token exchange request.. Mattermost Advisory ID: MMSA-2026-00570
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-305 - – Authentication Bypass by Primary Weakness
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://mattermost.com/security-updates | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.5.0 , ≤ 11.5.1
(semver)
Affected: 10.11.0 , ≤ 10.11.13 (semver) Unaffected: 11.6.0 Unaffected: 11.5.2 Unaffected: 10.11.14 |
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.