Common Weakness Enumeration
CWE-636
Allowed-with-ReviewNot Failing Securely ('Failing Open')
Abstraction: Class · Status: Draft
When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions.
125 vulnerabilities reference this CWE, most recent first.
CVE-2026-53837 (GCVE-0-2026-53837)
Vulnerability from cvelistv5 – Published: 2026-06-12 21:57 – Updated: 2026-06-15 15:10 X_Open Source
VLAI
EPSS
VEX
Title
OpenClaw < 2026.5.6 - Missing Channel Type Validation in Mattermost Event Handlers
Summary
OpenClaw before 2026.5.6 contains an improper access control vulnerability in Mattermost event handlers that fails to validate channel type metadata. Attackers can bypass intended DM policy decisions by sending crafted Mattermost events missing channel type information to process restricted content.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 15:09 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://www.vulncheck.com/advisories/openclaw-mis… | third-party-advisory |
Impacted products
Date Public
2026-05-28 00:00
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CVE-2026-53712 (GCVE-0-2026-53712)
Vulnerability from cvelistv5 – Published: 2026-07-17 18:19 – Updated: 2026-07-17 19:09
VLAI
EPSS
VEX
Title
SCRAM: Silent channel-binding authentication downgrade via unsupported certificate algorithms
Summary
SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to 3.3, a flaw in com.ongres.scram:scram-client and com.ongres.scram:scram-common allows an attacker capable of a TLS man-in-the-middle attack to silently downgrade a connection from SCRAM-SHA-256-PLUS with channel binding to standard SCRAM-SHA-256 without channel binding when TlsServerEndpoint processes an X.509 certificate using a modern signature algorithm such as Ed25519; getChannelBindingData() can return an empty byte array after NoSuchAlgorithmException, and the ScramClient builder treats that as absent channel-binding data. This issue is fixed in version 3.3.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 19:08 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ongres/scram/security/advisori… | x_refsource_CONFIRM |
| https://github.com/ongres/scram/releases/tag/3.3 | x_refsource_MISC |
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CVE-2026-53459 (GCVE-0-2026-53459)
Vulnerability from cvelistv5 – Published: 2026-09-15 17:25 – Updated: 2026-09-17 16:30
VLAI
EPSS
VEX
Title
Bambuddy's authentication fails open on database errors, allowing unauthenticated access to all endpoints
Summary
Bambuddy is a self-hosted print archive and management system for Bambu Lab 3D printers. Starting in version 0.1.6 and prior to version 0.2.4.4, a fail-open in the authentication code allows any attacker to bypass authentication by flooding a public endpoint to exhaust resources causing database access to fail, granting unauthenticated access to all protected endpoints. Version 0.2.4.4 patches the issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 16:30 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/maziggy/bambuddy/security/advi… | x_refsource_CONFIRM |
| https://github.com/maziggy/bambuddy/commit/845ad3… | x_refsource_MISC |
| https://github.com/maziggy/bambuddy/blob/449502cc… | x_refsource_MISC |
| https://github.com/maziggy/bambuddy/blob/449502cc… | x_refsource_MISC |
| https://github.com/maziggy/bambuddy/blob/main/CHA… | x_refsource_MISC |
| https://github.com/maziggy/bambuddy/releases/tag/… | x_refsource_MISC |
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CVE-2026-50528 (GCVE-0-2026-50528)
Vulnerability from cvelistv5 – Published: 2026-07-14 19:29 – Updated: 2026-10-08 18:16
VLAI
EPSS
VEX
Title
.NET Security Feature Bypass Vulnerability
Summary
Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 14:23 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | .NET 10.0 |
Affected:
10.0.0 , < 10.0.10
(custom)
|
|
| Microsoft | .NET 8.0 |
Affected:
8.0.0 , < 8.0.29
(custom)
|
|
| Microsoft | .NET 9.0 |
Affected:
9.0.0 , < 9.0.18
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.12 |
Affected:
17.12.0 , < 17.12.22
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2022 version 17.14 |
Affected:
17.14.0 , < 17.14.36
(custom)
|
|
| Microsoft | Microsoft Visual Studio 2026 version 18.7 |
Affected:
18.0 , < 18.7.4
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-49318 (GCVE-0-2026-49318)
Vulnerability from cvelistv5 – Published: 2026-05-29 13:18 – Updated: 2026-06-27 08:48
VLAI
EPSS
VEX
Title
Indian Scout Bobber 2025 Infotainment Digital Round skips PIN entry when WCM is silent at boot
Summary
Incorrect behavior order in the Infotainment / Digital Round display of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the PIN entry screen. The Infotainment uses presence of Wireless Control Module (WCM) traffic during its boot window as a proxy for whether an immobilizer is fitted; if no WCM messages are observed, it skips the PIN entry screen and shows the normal user interface. An attacker who silences the WCM during the boot window — for example via a separately tracked CAN bus-off technique — can present a fully unlocked Infotainment despite the PIN never being entered. Specific timing and protocol details have been withheld pending vendor remediation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 14:07 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cwe.mitre.org/data/definitions/696.html | technical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Indian Motorcycle | Scout Bobber + Tech |
Affected:
2025
(model-year)
|
Date Public
2026-05-29 15:00
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CVE-2026-49317 (GCVE-0-2026-49317)
Vulnerability from cvelistv5 – Published: 2026-05-29 12:42 – Updated: 2026-06-27 08:48
VLAI
EPSS
VEX
Title
Indian Scout Bobber 2025 Infotainment Digital Round skips PIN entry when WCM is silent at boot
Summary
Incorrect behavior order in the Infotainment / Digital Round display of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker to bypass the PIN entry screen. The Infotainment uses presence of Wireless Control Module (WCM) traffic during its boot window as a proxy for whether an immobilizer is fitted; if no WCM messages are observed, it skips the PIN entry screen and shows the normal user interface. An attacker who silences the WCM during the boot window — for example via a separately tracked CAN bus-off technique — can present a fully unlocked Infotainment despite the PIN never being entered. Specific timing and protocol details have been withheld pending vendor remediation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 15:26 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cwe.mitre.org/data/definitions/696.html | technical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Indian Motorcycle | Scout Bobber + Tech |
Affected:
2025
(model-year)
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CVE-2026-46482 (GCVE-0-2026-46482)
Vulnerability from cvelistv5 – Published: 2026-08-18 15:44 – Updated: 2026-08-18 17:46
VLAI
EPSS
VEX
Title
MyBB: Security Question insufficient validation
Summary
### Impact
The registration component does not validate the text-based _Security Question_ CAPTCHA correctly, allowing attackers to bypass the challenge via a specially crafted value.
[CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
### Details
The public _Registration_ workflow ([`member.php?action=do_register`](https://github.com/mybb/mybb/blob/mybb_1839/member.php#L262-L307)) accepts a hidden field `question_id` — expected to match the question session identifier (`mybb_questionsessions.sid`) — and validates the challenge answer without a fail-closed fallback for invalid identifiers. If the value is blank, forged, or expired, the request continues without a question-related error.
### Patches
MyBB 1.8.(...) resolves this issue with the following changes:
- Commit: https://github.com/mybb/mybb/commit/
- `.patch`: https://github.com/mybb/mybb/commit/.patch
### References
- Release Notes: https://mybb.com/versions/1.8.(...)/
### For more information
Go to [mybb.com/security](https://mybb.com/security/) to report possible security concerns or to learn more about security research at MyBB.
### Contact
The security team can be reached at [security@mybb.com](mailto:security@mybb.com).
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 17:44 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/mybb/mybb/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/mybb/mybb/commit/bd2a3447939d3… | x_refsource_MISC |
| https://github.com/mybb/mybb/releases/tag/mybb_1840 | x_refsource_MISC |
| https://mybb.com/versions/1.8.40 | x_refsource_MISC |
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CVE-2026-45781 (GCVE-0-2026-45781)
Vulnerability from cvelistv5 – Published: 2026-05-14 21:00 – Updated: 2026-05-16 01:06
VLAI
EPSS
VEX
Title
MCP Registry: OCI ownership validation fails open on upstream rate limits, allowing attacker-controlled package claims
Summary
The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.9, OCI ownership validation skips label-match check when upstream OCI registry returns HTTP 429, letting any authenticated publisher bind their io.github.<user>/* namespace to OCI images they do not control. internal/validators/registries/oci.go:104-119 fails open on http.StatusTooManyRequests: when the registry's anonymous fetch to the upstream OCI registry is rate-limited, ValidateOCI returns nil and the publish is accepted without ever running the io.modelcontextprotocol.server.name label-match check at lines 122-141. That label check is the only cross-system ownership proof the registry applies to OCI packages — every other registry type (NPM, PyPI, NuGet, MCPB) treats a non-200 upstream response as a hard error. This vulnerability is fixed in 1.7.9.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-16 01:05 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/modelcontextprotocol/registry/… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| modelcontextprotocol | registry |
Affected:
< 1.7.9
|
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CVE-2026-44094 (GCVE-0-2026-44094)
Vulnerability from cvelistv5 – Published: 2026-07-30 06:48 – Updated: 2026-07-30 14:04
VLAI
EPSS
VEX
Title
Fallback to second RAUC slot with default credentials
Summary
An unauthenticated remote attacker can enforce the system to fall back to a firmware partition with an insecure configuration including default credentials. This could allow the attacker to gain SSH access to the system as an unprivileged user "user-app". Charging could be interrupted.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 14:03 UTC
CWE
- CWE-636 - Not Failing Securely ('Failing Open')
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Phoenix Contact | CHARX SEC-3150 |
Affected:
1.0.0 , < 1.9.1
(semver)
|
|
| Phoenix Contact | CHARX SEC-3100 |
Affected:
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|
|
| Phoenix Contact | CHARX SEC-3050 |
Affected:
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(semver)
|
|
| Phoenix Contact | CHARX SEC-3000 |
Affected:
1.0.0 , < 1.9.1
(semver)
|
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CVE-2026-42423 (GCVE-0-2026-42423)
Vulnerability from cvelistv5 – Published: 2026-04-28 18:10 – Updated: 2026-04-30 12:55 X_Open Source
VLAI
EPSS
VEX
Title
OpenClaw < 2026.4.8 - strictInlineEval Approval Boundary Bypass via Approval-Timeout Fallback
Summary
OpenClaw before 2026.4.8 contains an approval-timeout fallback mechanism that bypasses strictInlineEval explicit-approval requirements on gateway and node exec hosts. Attackers can exploit this timeout fallback to execute inline eval commands that should require explicit user approval, circumventing the intended security boundary.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:55 UTC
CWE
- CWE-636 - Not Failing Securely (Failing Open)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://github.com/openclaw/openclaw/commit/d7c32… | patch |
| https://www.vulncheck.com/advisories/openclaw-str… | third-party-advisory |
Impacted products
Date Public
2026-04-08 00:00
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"cveMetadata": {
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"cveId": "CVE-2026-42423",
"datePublished": "2026-04-28T18:10:14.230Z",
"dateReserved": "2026-04-27T11:38:59.195Z",
"dateUpdated": "2026-04-30T12:55:53.497Z",
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Mitigation
Architecture and Design
Subdivide and allocate resources and components so that a failure in one part does not affect the entire product.
No CAPEC attack patterns related to this CWE.