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CWE-636

Not Failing Securely ('Failing Open')

36 CVEs Avg CVSS 6.7 MITRE
3
CRITICAL
15
HIGH
14
MEDIUM
4
LOW
2
POC
0
KEV

Monthly

CVE-2026-81379 Sep 08, 18:20 HIGH PATCH Exploit Unlikely This Week

Security feature bypass in Visual Studio Code before 1.136.2 allows a remote, unauthenticated attacker to circumvent a protection mechanism via a failing-open (CWE-636) code path, resulting in high confidentiality impact and limited integrity impact across a changed scope. The vulnerability is reachable over the network with low complexity but requires user interaction, suggesting an attacker must induce the victim to open a crafted workspace, file, or URI. No public exploit code and no CISA KEV listing have been identified at time of analysis, though Microsoft has released a patch.

Authentication Bypass
NVD
CVSS 3.1
8.2
EPSS
0.3%
CVE-2026-18329 Sep 02, 15:40 HIGH PATCH This Week

NGINX JavaScript (njs) and QuickJS (qjs) fail open during the js_access phase when an exception is thrown inside an asynchronous request-body processing handler before an explicit access-denial is returned. The flaw (CWE-636, Not Failing Securely) allows unauthenticated remote attackers to bypass js_access controls entirely and reach protected backend resources. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation is bounded by the requirement for a specific async access-handler pattern.

Authentication Bypass Nginx Suse Nginx Javascript F5
NVD VulDB
CVSS 4.0
8.8
EPSS
0.4%
CVE-2026-69306 Aug 11, 17:19 HIGH PATCH Exploit Unlikely This Week

Fail-open security logic in Visual Studio Code permits network-based security feature bypass by an unauthenticated attacker who can induce user interaction. The root cause is CWE-636: when the application encounters an error or edge condition in a security enforcement path, it defaults to granting rather than denying access, neutralizing the intended control. With a CVSS score of 8.2 and a scope-changed vector (S:C) paired with high confidentiality impact, successful exploitation could expose data or capabilities beyond the direct VS Code process boundary. No public exploit code or CISA KEV listing has been identified at time of analysis.

Authentication Bypass Microsoft Visual Studio Code
NVD VulDB
CVSS 3.1
8.2
EPSS
0.4%
CVE-2026-68746 Aug 05, 20:17 HIGH PATCH This Week

Full unauthenticated access to Livebook 0.19.7-0.19.9 is possible when a Livebook Agent or App Server's deployment group is deleted from Livebook Teams while the agent is temporarily disconnected. A logic error in `Livebook.Hubs.TeamClient.handle_call/3` causes the zero-trust authentication layer to treat an unresolvable cached deployment group identifier identically to one with identity enforcement deliberately disabled, allowing any network-reachable client to read notebooks and secrets, execute code on the server runtime, and disrupt operations without authentication. No public exploit has been identified at time of analysis, and no CISA KEV listing is present, but the high confidentiality, integrity, and availability impact (CVSS 4.0: 7.7) warrants prompt patching for all Teams-connected deployments.

Information Disclosure Livebook
NVD GitHub
CVSS 4.0
7.7
EPSS
0.4%
CVE-2026-44094 Jul 30, 07:16 HIGH PATCH This Week

Insecure firmware-fallback in Phoenix Contact CHARX SEC EV charging controllers (SEC-3000, SEC-3050, SEC-3100, SEC-3150, versions 1.0.0 up to 1.9.1) lets a remote unauthenticated attacker force the device to boot an alternate firmware partition that ships with an insecure configuration and default credentials, yielding SSH access as the unprivileged 'user-app' account and allowing charging to be interrupted. The issue was reported by CERT@VDE (VDE-2026-008 / EUVD-2026-51029) and carries a CVSS 4.0 base score of 8.3, driven by high availability impact. No public exploit identified at time of analysis, and it is not listed in CISA KEV.

Information Disclosure
NVD
CVSS 4.0
8.3
EPSS
0.3%
CVE-2026-54291 Jul 06, 18:55 Maven HIGH PATCH GHSA This Week

Channel-binding downgrade in the pgjdbc PostgreSQL JDBC Driver (releases 42.7.4 through 42.7.11) lets an active man-in-the-middle silently strip SCRAM-SHA-256-PLUS channel binding down to plain SCRAM-SHA-256 even when the client explicitly set channelBinding=require, defeating the exact protection that setting promises. The flaw stems from the bundled com.ongres.scram:scram-client returning an empty binding for certificates whose signature algorithm lacks a tls-server-end-point hash, combined with pgJDBC's ScramAuthenticator failing to reject that empty binding. No public exploit identified at time of analysis and it is not listed in CISA KEV; it is fixed in 42.7.12.

Information Disclosure PostgreSQL Red Hat Suse Pgjdbc
NVD GitHub VulDB
CVSS 4.0
8.2
EPSS
0.3%
CVE-2026-53712 Jul 01, 21:51 Maven HIGH PATCH GHSA This Week

Silent authentication downgrade in the OnGres SCRAM Java client (com.ongres.scram:scram-client and scram-common, versions <= 3.2) lets a TLS man-in-the-middle strip SCRAM-SHA-256-PLUS channel binding down to plain SCRAM-SHA-256, defeating clients that explicitly set channelBinding=require. The flaw only manifests when the server certificate uses a modern signature algorithm without a 'WITH' name (e.g., Ed25519 or post-quantum), causing the deprecated getChannelBindingData() API to swallow a NoSuchAlgorithmException and return an empty byte array that the builder misreads as 'no channel binding available.' No public exploit is identified at time of analysis, and it is not listed in CISA KEV; a vendor patch (3.3) is available.

Authentication Bypass Java Red Hat
NVD GitHub
CVSS 4.0
8.2
EPSS
0.3%
CVE-2026-42423 Apr 28, 18:10 npm HIGH PATCH This Week

Explicit-approval bypass in OpenClaw before 2026.4.8 lets an attacker with low-privileged access to gateway or node exec hosts run inline eval commands that the strictInlineEval control is supposed to gate behind manual user approval. The flaw is a fail-open approval-timeout fallback: when an approval prompt is not answered in time, the system permits the eval instead of denying it, defeating the intended trust boundary. No public exploit identified at time of analysis; EPSS is very low (0.04%, 12th percentile) and CISA SSVC records no observed exploitation, though technical impact is rated total.

Authentication Bypass Openclaw
NVD GitHub VulDB
CVSS 4.0
7.7
EPSS
0.0%
CVE-2026-41334 Apr 23, 21:57 npm HIGH PATCH This Week

Denial of service in OpenClaw before 2026.3.31 lets remote attackers exhaust image-gateway memory by submitting a decompression bomb - a tiny compressed image that decodes to an enormous pixel count. The pixel-limit guard fails open on the sips backend, so oversized images are decoded before any size check runs. EPSS is very low (0.03%, 9th percentile) and there is no public exploit identified at time of analysis; a vendor patch (2026.3.31) is available.

Denial Of Service Openclaw
NVD GitHub VulDB
CVSS 4.0
7.1
EPSS
0.0%
CVE-2026-40525 Apr 17, 18:19 PyPI CRITICAL PATCH GHSA Act Now

OpenViking VikingBot OpenAPI routes permit unauthenticated remote attackers to execute privileged bot-control operations when the api_key configuration is unset or empty. Attackers can submit arbitrary prompts, manipulate bot sessions, and access downstream integrations, secrets, and data without providing valid X-API-Key authentication. Affects OpenViking versions ≤0.3.8; patched in commit c7bb167 (v0.3.9 release). No active exploitation confirmed (not in CISA KEV), but EPSS score of 0.11% suggests low observed exploitation probability. VulnCheck advisory and GitHub patch available.

Authentication Bypass Openviking Volcengine
NVD GitHub VulDB
CVSS 4.0
9.1
EPSS
0.1%
EPSS 0% CVSS 8.2
HIGH PATCH Exploit Unlikely This Week

Security feature bypass in Visual Studio Code before 1.136.2 allows a remote, unauthenticated attacker to circumvent a protection mechanism via a failing-open (CWE-636) code path, resulting in high confidentiality impact and limited integrity impact across a changed scope. The vulnerability is reachable over the network with low complexity but requires user interaction, suggesting an attacker must induce the victim to open a crafted workspace, file, or URI. No public exploit code and no CISA KEV listing have been identified at time of analysis, though Microsoft has released a patch.

Authentication Bypass
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

NGINX JavaScript (njs) and QuickJS (qjs) fail open during the js_access phase when an exception is thrown inside an asynchronous request-body processing handler before an explicit access-denial is returned. The flaw (CWE-636, Not Failing Securely) allows unauthenticated remote attackers to bypass js_access controls entirely and reach protected backend resources. No public exploit code or CISA KEV listing has been identified at time of analysis; exploitation is bounded by the requirement for a specific async access-handler pattern.

Authentication Bypass Nginx Suse +2
NVD VulDB
EPSS 0% CVSS 8.2
HIGH PATCH Exploit Unlikely This Week

Fail-open security logic in Visual Studio Code permits network-based security feature bypass by an unauthenticated attacker who can induce user interaction. The root cause is CWE-636: when the application encounters an error or edge condition in a security enforcement path, it defaults to granting rather than denying access, neutralizing the intended control. With a CVSS score of 8.2 and a scope-changed vector (S:C) paired with high confidentiality impact, successful exploitation could expose data or capabilities beyond the direct VS Code process boundary. No public exploit code or CISA KEV listing has been identified at time of analysis.

Authentication Bypass Microsoft Visual Studio Code
NVD VulDB
EPSS 0% CVSS 7.7
HIGH PATCH This Week

Full unauthenticated access to Livebook 0.19.7-0.19.9 is possible when a Livebook Agent or App Server's deployment group is deleted from Livebook Teams while the agent is temporarily disconnected. A logic error in `Livebook.Hubs.TeamClient.handle_call/3` causes the zero-trust authentication layer to treat an unresolvable cached deployment group identifier identically to one with identity enforcement deliberately disabled, allowing any network-reachable client to read notebooks and secrets, execute code on the server runtime, and disrupt operations without authentication. No public exploit has been identified at time of analysis, and no CISA KEV listing is present, but the high confidentiality, integrity, and availability impact (CVSS 4.0: 7.7) warrants prompt patching for all Teams-connected deployments.

Information Disclosure Livebook
NVD GitHub
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Insecure firmware-fallback in Phoenix Contact CHARX SEC EV charging controllers (SEC-3000, SEC-3050, SEC-3100, SEC-3150, versions 1.0.0 up to 1.9.1) lets a remote unauthenticated attacker force the device to boot an alternate firmware partition that ships with an insecure configuration and default credentials, yielding SSH access as the unprivileged 'user-app' account and allowing charging to be interrupted. The issue was reported by CERT@VDE (VDE-2026-008 / EUVD-2026-51029) and carries a CVSS 4.0 base score of 8.3, driven by high availability impact. No public exploit identified at time of analysis, and it is not listed in CISA KEV.

Information Disclosure
NVD
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Channel-binding downgrade in the pgjdbc PostgreSQL JDBC Driver (releases 42.7.4 through 42.7.11) lets an active man-in-the-middle silently strip SCRAM-SHA-256-PLUS channel binding down to plain SCRAM-SHA-256 even when the client explicitly set channelBinding=require, defeating the exact protection that setting promises. The flaw stems from the bundled com.ongres.scram:scram-client returning an empty binding for certificates whose signature algorithm lacks a tls-server-end-point hash, combined with pgJDBC's ScramAuthenticator failing to reject that empty binding. No public exploit identified at time of analysis and it is not listed in CISA KEV; it is fixed in 42.7.12.

Information Disclosure PostgreSQL Red Hat +2
NVD GitHub VulDB
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Silent authentication downgrade in the OnGres SCRAM Java client (com.ongres.scram:scram-client and scram-common, versions <= 3.2) lets a TLS man-in-the-middle strip SCRAM-SHA-256-PLUS channel binding down to plain SCRAM-SHA-256, defeating clients that explicitly set channelBinding=require. The flaw only manifests when the server certificate uses a modern signature algorithm without a 'WITH' name (e.g., Ed25519 or post-quantum), causing the deprecated getChannelBindingData() API to swallow a NoSuchAlgorithmException and return an empty byte array that the builder misreads as 'no channel binding available.' No public exploit is identified at time of analysis, and it is not listed in CISA KEV; a vendor patch (3.3) is available.

Authentication Bypass Java Red Hat
NVD GitHub
EPSS 0% CVSS 7.7
HIGH PATCH This Week

Explicit-approval bypass in OpenClaw before 2026.4.8 lets an attacker with low-privileged access to gateway or node exec hosts run inline eval commands that the strictInlineEval control is supposed to gate behind manual user approval. The flaw is a fail-open approval-timeout fallback: when an approval prompt is not answered in time, the system permits the eval instead of denying it, defeating the intended trust boundary. No public exploit identified at time of analysis; EPSS is very low (0.04%, 12th percentile) and CISA SSVC records no observed exploitation, though technical impact is rated total.

Authentication Bypass Openclaw
NVD GitHub VulDB
EPSS 0% CVSS 7.1
HIGH PATCH This Week

Denial of service in OpenClaw before 2026.3.31 lets remote attackers exhaust image-gateway memory by submitting a decompression bomb - a tiny compressed image that decodes to an enormous pixel count. The pixel-limit guard fails open on the sips backend, so oversized images are decoded before any size check runs. EPSS is very low (0.03%, 9th percentile) and there is no public exploit identified at time of analysis; a vendor patch (2026.3.31) is available.

Denial Of Service Openclaw
NVD GitHub VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

OpenViking VikingBot OpenAPI routes permit unauthenticated remote attackers to execute privileged bot-control operations when the api_key configuration is unset or empty. Attackers can submit arbitrary prompts, manipulate bot sessions, and access downstream integrations, secrets, and data without providing valid X-API-Key authentication. Affects OpenViking versions ≤0.3.8; patched in commit c7bb167 (v0.3.9 release). No active exploitation confirmed (not in CISA KEV), but EPSS score of 0.11% suggests low observed exploitation probability. VulnCheck advisory and GitHub patch available.

Authentication Bypass Openviking Volcengine
NVD GitHub VulDB

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