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.
167 vulnerabilities reference this CWE, most recent first.
CVE-2026-114230 (GCVE-0-2026-114230)
Vulnerability from cvelistv5 – Published: 2026-10-29 10:19 – Updated: 2026-11-05 21:29
VLAI
EPSS
VEX
Title
Apache Qpid Proton C: Potential authentication bypass: regular AMQP frames can be sent as SASL frames
Summary
When dispatching SASL frames to authenticate the peer, Proton will also dispatch AMQP frames if they claim to be SASL frames. This allows authentication bypass. However there will be no user name set so the effects depend on how the application deals with this condition - which otherwise means that authentication has not completed yet.
This issue affects Apache Qpid Proton C: through 0.40.0.
Users are recommended to upgrade to version 0.41.1, which fixes the issue.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 21:29 UTC
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread.html/ob7vo6swpj4w… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Qpid Proton C |
Affected:
0 , ≤ 0.40.0
(semver)
|
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CVE-2026-112208 (GCVE-0-2026-112208)
Vulnerability from cvelistv5 – Published: 2026-11-05 16:05 – Updated: 2026-11-09 16:51
VLAI
EPSS
VEX
Title
Keycloak-services: keycloak-services: account takeover via stale sso_auth note in organization identity-first login
Summary
A flaw was found in the Organization identity-first login flow of the Keycloak authentication server. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when an attacker who belongs to multiple organizations initiates a login and then switches to a registration or password reset path. During this process, a flag indicating a successful login is not properly cleared when the user is removed from the session. An attacker can then provide a victim's username, and the system incorrectly treats the stale flag as proof of the victim's identity. This allows the attacker to bypass authentication and gain full access to the victim's account and connected applications.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:12 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
redhat
CNA
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:95761 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:95762 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-112208 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2555473 | issue-trackingx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6.8-2 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6-24 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6.8 |
cpe:/a:redhat:build_keycloak:26.6::el9
|
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7
|
Date Public
2026-11-05 00:00
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CVE-2026-111283 (GCVE-0-2026-111283)
Vulnerability from cvelistv5 – Published: 2026-10-15 21:43 – Updated: 2026-10-20 10:46
VLAI
EPSS
VEX
Title
BMC Helix Network Management 26.3.00 before 26.3.01 Authentication Bypass via SAML Configuration
Summary
BMC Helix Network Management on-prem 26.3.00 before 26.3.01 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as the local administrator with any password when SAML single sign-on is configured. Attackers can submit the administrator username with an arbitrary password on the web login page to obtain a SuperAdmin session, modify device credentials, run device commands, and alter audit records.
Severity
9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 16:35 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://docs.helixops.ai/bin/IT-Operations-Manage… | release-notesvendor-advisory |
| https://github.com/cybliminal/cve-2026-111283-bmc… | technical-description |
| https://www.vulncheck.com/advisories/bmc-helix-ne… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| BMC Helix | BMC Helix Network Management |
Affected:
26.3.00 , < 26.3.01
(custom)
|
Date Public
2026-09-23 00:00
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CVE-2026-110883 (GCVE-0-2026-110883)
Vulnerability from cvelistv5 – Published: 2026-10-18 11:00 – Updated: 2026-10-19 19:00 X_Open Source
VLAI
EPSS
VEX
Title
WordPress 2Way VideoCalls and Random Chat plugin <= 6.1.5 - Broken Authentication vulnerability
Summary
Authentication Bypass by Primary Weakness vulnerability in VideoWhisper.com 2Way VideoCalls and Random Chat webcam-2way-videochat allows Authentication Abuse.This issue affects 2Way VideoCalls and Random Chat: from n/a through 6.1.5.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 18:58 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| VideoWhisper.com | 2Way VideoCalls and Random Chat |
Affected:
0 , ≤ 6.1.5
(custom)
|
Date Public
2026-10-16 10:37
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CVE-2026-107808 (GCVE-0-2026-107808)
Vulnerability from cvelistv5 – Published: 2026-10-09 15:11 – Updated: 2026-10-09 17:19
VLAI
EPSS
VEX
Title
Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
Summary
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, POST /api/login checks EnabledOTP but does not require a WebAuthn assertion when EnabledPasskey is true and no TOTP secret is configured. A passkey-only account is therefore issued a session after password verification, despite Enabled2FA reporting that the account has a second factor. An attacker who obtains the password can take over the account and reach administrative functionality without the registered passkey. This issue is fixed in version 2.5.0.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 17:16 UTC
CWE
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/0xJacky/nginx-ui/security/advi… | x_refsource_CONFIRM |
| https://github.com/0xJacky/nginx-ui/commit/95cd21… | x_refsource_MISC |
| https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0 | x_refsource_MISC |
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CVE-2026-94053 (GCVE-0-2026-94053)
Vulnerability from cvelistv5 – Published: 2026-09-30 09:43 – Updated: 2026-09-30 14:30
VLAI
EPSS
VEX
Title
Apache MINA SSHD: LDAP injection in sshd-ldap
Summary
Authentication bypass via LDAP injection in component sshd-ldap in Apache MINA SSHD versions 1.2.0 to 2.19.0 and 3.0.0-M1 to 3.0.0-M5.
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Lack of escaping LDAP filter metacharacters enabled successful authentication with username "*" and password "*".
Users are recommended to upgrade affected applications to version 2.20.0 or 3.0.0-M6, which fix this issue by properly escaping filter parameters according to RFC 4515.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:29 UTC
CWE
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread.html/cyrxkdzl3c70… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache MINA SSHD |
Affected:
1.2.0 , < 2.20.0
(maven)
Affected: 3.0.0-M1 , < 3.0.0-M6 (maven) |
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CVE-2026-88837 (GCVE-0-2026-88837)
Vulnerability from cvelistv5 – Published: 2026-09-23 17:45 – Updated: 2026-09-25 22:28
VLAI
EPSS
VEX
Title
Busybox: busybox: httpd misidentifies yescrypt password hashes as plaintext, inverting authentication
Summary
BusyBox httpd treats yescrypt ($y$) password hashes as plaintext during Basic Authentication, inverting the authentication check.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 18:00 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
redhat
CNA
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:72111 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-88837 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2531351 | issue-trackingx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.37.0-9.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
Date Public
2026-09-23 16:35
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CVE-2026-86207 (GCVE-0-2026-86207)
Vulnerability from cvelistv5 – Published: 2026-09-05 19:12 – Updated: 2026-09-08 15:18
VLAI
EPSS
VEX
Title
Authentication bypass leads to unauthorised access to N-central
Summary
An authentication bypass in N-central < 2026.3 HF 3 leads to authentication bypass in internal only APIs
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:18 UTC
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
N-able
CNA
References
2 references
| URL | Tags |
|---|---|
| https://documentation.n-able.com/N-central/Releas… | release-notes |
| https://me.n-able.com/s/security-advisory/aArVy00… | vendor-advisory |
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CVE-2026-85500 (GCVE-0-2026-85500)
Vulnerability from cvelistv5 – Published: 2026-09-17 13:09 – Updated: 2026-09-17 18:12
VLAI
EPSS
VEX
Title
`require_confirmed_with` is not enforced on the action and fails open on an unreadable attribute in AshAuthentication
Summary
Authentication Bypass by Primary Weakness vulnerability in team-alembic AshAuthentication allows an unconfirmed user to obtain a session, defeating a mandatory email confirmation requirement.
AshAuthentication.Strategy.Password.Actions.check_user/2 decides whether the attribute named by require_confirmed_with is set using a bare is_nil(Map.get(user, value)). When that attribute is not selected on the loaded record Map.get/2 returns %Ash.NotLoaded{}, and when a field policy denies it for the current actor it returns %Ash.ForbiddenField{}. Neither is nil, so the rejection branch is skipped and sign-i
require_confirmed_with is enforced in two places, and neither holds in every configuration. sign_in_with_token and register are checked only inside AshAuthentication.Strategy.Password.Actions, not on the action itself, so any caller that invokes the action directly skips the check. An API layer such as AshGraphql or AshJsonApi invokes the action directly, so this applies to the default configuration. Where a check does run it compares the confirmation attribute against nil. That attribute holds %Ash.NotLoaded{} or %Ash.ForbiddenField{} when it sets select_by_default?: false, when an API layer narrows the read's select, or when a field policy hides it from the sign-in actor. Neither struct is nil, so those configurations read every user as confirmed.
This issue affects ash_authentication: from 4.3.8 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 18:12 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
EEF
CNA
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| team-alembic | ash_authentication |
Affected:
4.3.8 , < 4.15.0
(semver)
Affected: 5.0.0-rc.0 , < 5.0.0-rc.14 (semver) cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:* |
|
| team-alembic | ash_authentication |
Affected:
7d37bc6e4df6697b5813d2f373f0fdb08f813f98 , < *
(git)
cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:* |
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CVE-2026-81578 (GCVE-0-2026-81578)
Vulnerability from cvelistv5 – Published: 2026-08-28 11:39 – Updated: 2026-09-13 23:15
VLAI
EPSS
VEX
Title
PaperCut MF/NG: Authentication Bypass
Summary
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 00:00 UTC
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
PaperCut
CNA
References
3 references
| URL | Tags |
|---|---|
| https://www.papercut.com/kb/Main/security-bulleti… | |
| https://github.com/rapid7/metasploit-framework/pu… | exploit |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PaperCut | PaperCut MF/NG |
Affected:
0 , < 24.1.10
(semver)
Affected: 25.0.0 , < 25.0.13 (semver) Affected: 26.0.0 , < 26.0.5 (semver) |
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.