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.
300 vulnerabilities reference this CWE, most recent first.
CVE-2026-3591 (GCVE-0-2026-3591)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:34 – Updated: 2026-03-25 14:13
VLAI
EPSS
VEX
Title
A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass
Summary
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:12 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3591 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.20.0 , ≤ 9.20.20
(custom)
Affected: 9.21.0 , ≤ 9.21.19 (custom) Affected: 9.20.9-S1 , ≤ 9.20.20-S1 (custom) Unaffected: 9.18.0 , ≤ 9.18.46 (custom) Unaffected: 9.18.11-S1 , ≤ 9.18.46-S1 (custom) cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
Date Public
2026-03-25 00:00
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CVE-2026-3047 (GCVE-0-2026-3047)
Vulnerability from cvelistv5 – Published: 2026-03-05 18:28 – Updated: 2026-07-15 01:09
VLAI
EPSS
VEX
Title
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
Summary
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 18:13 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:3925 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:3926 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:3947 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:3948 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-3047 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2441966 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.14-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2-16 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2.14 |
cpe:/a:redhat:build_keycloak:26.2::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.10-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-12 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.10 |
cpe:/a:redhat:build_keycloak:26.4::el9
|
Date Public
2026-03-05 11:24
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CVE-2026-2652 (GCVE-0-2026-2652)
Vulnerability from cvelistv5 – Published: 2026-05-15 02:13 – Updated: 2026-05-15 13:22
VLAI
EPSS
VEX
Title
Authentication Bypass in mlflow/mlflow
Summary
A vulnerability in mlflow/mlflow versions 3.9.0 and earlier allows unauthenticated access to certain FastAPI routes when the server is started with authentication enabled (`--app-name basic-auth`) and served via uvicorn (ASGI). The FastAPI permission middleware only enforces authentication on `/gateway/` routes, leaving other routes such as the Job API (`/ajax-api/3.0/jobs/*`) and the OpenTelemetry trace ingestion API (`/v1/traces`) unprotected. This allows unauthenticated remote attackers to submit jobs, read job results, cancel running jobs, and inject arbitrary trace data into experiments. The issue arises from an architectural mismatch between Flask and FastAPI authentication mechanisms, where the `_find_fastapi_validator()` function fails to handle non-`/gateway/` paths, resulting in a complete authentication bypass. This vulnerability is fixed in version 3.10.0.
Severity
8.6 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 13:22 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mlflow | mlflow/mlflow |
Affected:
unspecified , < 3.10.0
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CVE-2026-1713 (GCVE-0-2026-1713)
Vulnerability from cvelistv5 – Published: 2026-03-03 20:28 – Updated: 2026-03-03 20:49
VLAI
EPSS
VEX
Title
IBM MQ is affected by an authority vulnerablility
Summary
IBM MQ 9.1.0.0 through 9.1.0.33 LTS, 9.2.0.0 through 9.2.0.40 LTS, 9.3.0.0 through 9.3.0.36 LTS, 9.30.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.17 LTS, and 9.4.0.0 through 9.4.4.1 CD
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:49 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7261944 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | MQ |
Affected:
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CVE-2026-1621 (GCVE-0-2026-1621)
Vulnerability from cvelistv5 – Published: 2026-08-14 14:08 – Updated: 2026-08-14 14:37
VLAI
EPSS
VEX
Title
Register Bypass in Universal Sotware's E-Municipality
Summary
Authentication bypass by primary weakness vulnerability in Universal Software Inc. E-Municipality allows Exploitation of Trusted Identifiers.
This issue affects E-Municipality: from 20251127 before 20260204.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 14:37 UTC
CWE
- CWE-305 - Authentication bypass by primary weakness
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Universal Software Inc. | E-Municipality |
Affected:
20251127 , < 20260204
(custom)
|
Date Public
2026-08-14 14:02
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CVE-2026-1290 (GCVE-0-2026-1290)
Vulnerability from cvelistv5 – Published: 2026-01-21 15:25 – Updated: 2026-01-21 15:49
VLAI
EPSS
VEX
Title
[PI141230] Fixed A broken access control issue.
Summary
Authentication Bypass by Primary Weakness vulnerability in Jamf Jamf Pro allows unspecified impact.This issue affects Jamf Pro: from 11.20 through 11.24.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:48 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
1 reference
Date Public
2026-01-20 15:10
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CVE-2026-0869 (GCVE-0-2026-0869)
Vulnerability from cvelistv5 – Published: 2026-03-03 19:59 – Updated: 2026-03-04 21:19
VLAI
EPSS
VEX
Title
Application User custom defined accounts are not properly password protected in Brocade ASCG 3.4.0
Summary
Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support Link(BSL) and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-04 21:19 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
1 reference
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CVE-2025-68609 (GCVE-0-2025-68609)
Vulnerability from cvelistv5 – Published: 2026-01-22 19:06 – Updated: 2026-01-22 19:33
VLAI
EPSS
VEX
Title
Authentication bypass in Aries due to misconfiguration
Summary
A vulnerability in Palantir's Aries service allowed unauthenticated access to log viewing and management functionality on Apollo instances using default configuration. The defect resulted in both authentication and authorization checks being bypassed, potentially allowing any network-accessible client to view system logs and perform operations without valid credentials. No evidence of exploitation was identified during the vulnerability window.
Severity
6.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-22 19:29 UTC
CWE
- CWE-305 - 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.
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palantir | com.palantir.aries:aries |
Unaffected:
1.554.0 , < *
(semver)
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CVE-2025-68435 (GCVE-0-2025-68435)
Vulnerability from cvelistv5 – Published: 2025-12-17 23:10 – Updated: 2025-12-18 15:33
VLAI
EPSS
VEX
Title
Zerobyte has Authentication Bypass by Primary Weakness
Summary
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Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 15:31 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nicotsx/zerobyte/security/advi… | x_refsource_CONFIRM |
| https://github.com/nicotsx/zerobyte/issues/161 | x_refsource_MISC |
| https://github.com/nicotsx/zerobyte/commit/13e080… | x_refsource_MISC |
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CVE-2025-62772 (GCVE-0-2025-62772)
Vulnerability from cvelistv5 – Published: 2025-10-22 00:00 – Updated: 2025-10-22 15:52
VLAI
EPSS
VEX
Summary
On Mercku M6a devices through 2.1.0, session tokens remain valid for at least months in some cases.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-22 15:51 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
References
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"references": [
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.