Common Weakness Enumeration

CWE-755

Discouraged

Improper Handling of Exceptional Conditions

Abstraction: Class · Status: Incomplete

The product does not handle or incorrectly handles an exceptional condition.

761 vulnerabilities reference this CWE, most recent first.

CVE-2026-112332 (GCVE-0-2026-112332)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:42 – Updated: 2026-10-23 13:28 X_Open Source
VLAI
Title
Motor.NET < 0.19.0 Denial of Service via JsonNet Deserialization
Summary
Motor.NET before 0.19.0 contains an uncaught exception vulnerability in JsonNetDeserializer.Deserialize that allows a remote attacker who can publish to a consumed queue or topic to crash the service permanently by sending structurally valid JSON that does not match the handler's expected type. Attackers can exploit the fact that JsonSerializationException is not caught alongside JsonReaderException and InvalidCastException, causing TypedConsumerService.SingleMessageConsumeAsync to treat the error as CriticalFailure and call StopApplication, which combined with the unacknowledged message being redelivered on restart results in a permanent crash-loop.
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
Impacted products
Vendor Product Version
GDATASoftwareAG motornet Affected: 0 , < 0.19.0 (semver)
Create a notification for this product.
Date Public
2026-10-12 00:00
Show details on NVD website

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CVE-2026-112331 (GCVE-0-2026-112331)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:41 – Updated: 2026-10-23 13:28 X_Open Source
VLAI
Title
Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping
Summary
Motor.NET before 0.19.0 contains a denial-of-service vulnerability that allows a remote attacker who can produce records to a consumed topic to crash the service permanently by sending a single crafted record. By setting the content-type header to application/cloudevents+json and omitting required CloudEvent attributes (id, source, type), the attacker triggers an ArgumentException in KafkaMessageConsumer.SingleMessageHandlingAsync that is treated as fatal, causing the host to stop and re-process the same poison record on every restart, resulting in a permanent crash-loop.
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
Impacted products
Vendor Product Version
GDATASoftwareAG motornet Affected: 0 , < 0.19.0 (semver)
Create a notification for this product.
Date Public
2026-10-12 00:00
Show details on NVD website

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CVE-2026-112330 (GCVE-0-2026-112330)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:40 – Updated: 2026-10-23 21:06 X_Open Source
VLAI
Title
Motor.NET < 0.19.0 RabbitMQ Denial of Service via CloudEvents Headers
Summary
Motor.NET before 0.19.0 contains a denial of service vulnerability that allows a remote attacker who can publish to a consumed queue to crash the service permanently by sending a message with crafted cloudEvents headers. Attackers can supply an invalid cloudEvents:motorversion, a single double-quote header value, or an unparsable typed attribute such as cloudEvents:time to trigger an unhandled exception in ExtractCloudEvent that is treated as fatal, causing the application to stop and the unacknowledged message to be redelivered on restart, resulting in a permanent crash-loop.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 17:33 UTC
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
Impacted products
Vendor Product Version
GDATASoftwareAG motornet Affected: 0 , < 0.19.0 (semver)
Create a notification for this product.
Date Public
2026-10-12 00:00
Show details on NVD website

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CVE-2026-109619 (GCVE-0-2026-109619)

Vulnerability from cvelistv5 – Published: 2026-10-21 13:54 – Updated: 2026-10-28 03:55
VLAI
Title
RCE via stale global state
Summary
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE).
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 00:00 UTC
CWE
  • CWE-416 - Use after free
  • CWE-755 - Improper Handling of Exceptional Conditions
  • CWE-824 - Access of uninitialized pointer
  • CWE-1325 - Improperly controlled sequential memory allocation
  • CWE-1419 - Incorrect Initialization of Resource
Assigner
php CNA under the mitre root
CNA scorecard B 81/100 over 27 records in the last 180 days details
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.2.* , < 8.2.35 (semver)
Affected: 8.3.* , < 8.3.36 (semver)
Affected: 8.4.* , < 8.4.27 (semver)
Affected: 8.5.* , < 8.5.12 (semver)
Create a notification for this product.
Siemens RUGGEDCOM APE1808 Affected: 0 , < * (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-109618 (GCVE-0-2026-109618)

Vulnerability from cvelistv5 – Published: 2026-10-21 13:48 – Updated: 2026-10-28 03:55
VLAI
Title
RCE via OOM corruption
Summary
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-21 00:00 UTC
CWE
  • CWE-416 - Use after free
  • CWE-755 - Improper Handling of Exceptional Conditions
  • CWE-824 - Access of uninitialized pointer
  • CWE-1325 - Improperly controlled sequential memory allocation
  • CWE-1419 - Incorrect Initialization of Resource
Assigner
php CNA under the mitre root
CNA scorecard B 81/100 over 27 records in the last 180 days details
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.2.* , < 8.2.35 (semver)
Affected: 8.3.* , < 8.3.36 (semver)
Affected: 8.4.* , < 8.4.27 (semver)
Affected: 8.5.* , < 8.5.12 (semver)
Create a notification for this product.
Siemens RUGGEDCOM APE1808 Affected: 0 , < * (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-105757 (GCVE-0-2026-105757)

Vulnerability from cvelistv5 – Published: 2026-10-05 22:52 – Updated: 2026-10-06 13:20
VLAI
Title
vLLM: Structured-output request errors escape the request boundary and terminate the shared EngineCore — engine-fatal denial of service (3 sites)
Summary
vLLM is an inference and serving engine for large language models. Prior to 0.30.0, structured-output request failures can escape request-scoped validation and reach the EngineCore fatal-error path. A per-request backend mismatch can re-raise a grammar compilation exception, padding produced by the ngram_gpu speculative-decoding mode can pass a negative token to guidance validation, and the Rust frontend can admit empty structured-output values that the Python frontend rejects, allowing ordinary constrained-generation requests to terminate the shared engine. This issue is fixed in version 0.30.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 13:20 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-248 - Uncaught Exception
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7838 records in the last 180 days details
Impacted products
Vendor Product Version
vllm-project vllm Affected: < 0.30.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-105242 (GCVE-0-2026-105242)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:50 – Updated: 2026-10-07 14:49
VLAI
Title
Apache log4net: Request validation failure drops the event in the aspnet-request converter
Summary
Improper Handling of Exceptional Conditions vulnerability in the aspnet-request pattern converter of Apache log4net. Reading request parameters triggers ASP.NET request validation, so a request carrying content such as markup made the layout throw and the appender discarded the whole event. A sender could suppress the log record of their own request. Only applications on ASP.NET for .NET Framework whose layout uses %aspnet-request are affected. This issue affects Apache log4net: from 1.2.11 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 14:48 UTC
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1078 records in the last 180 days details
Impacted products
Vendor Product Version
Apache Software Foundation Apache log4net Affected: 1.2.11 , < 3.5.0 (semver)
Create a notification for this product.
Apache Software Foundation Apache log4net Affected: 243f1e9f3ee235955bade4b4fe664a903378719a , < 145203420c579a703008b4b723b6a080757f4964 (git)
Create a notification for this product.
Show details on NVD website

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CVE-2026-103936 (GCVE-0-2026-103936)

Vulnerability from cvelistv5 – Published: 2026-10-15 17:28 – Updated: 2026-10-16 17:12
VLAI
Title
libp2p: Single pre-auth STUN packet terminates `@libp2p/webrtc` WebRTC-direct Node.js listeners
Summary
libp2p is a JavaScript implementation of the libp2p networking stack. Prior to 6.0.28, the @libp2p/webrtc webRTCDirect() Node.js listener processes unauthenticated STUN Binding Requests before PeerId authentication, Noise, muxing, protocol negotiation, connection creation, or connection-manager admission. The listener in packages/transport-webrtc/src/private-to-public/utils/stun-listener.ts forwards the packet-controlled request.ufrag into DirectRTCPeerConnection.setLocalDescription, where the value is reused as an ICE password without validating its required length and character set. A short credential causes node-datachannel or libdatachannel to raise an uncaught native invalid_argument and abort the process with SIGABRT, allowing a single remote UDP packet to deny service. The confirmed impact is process termination only, with no demonstrated memory corruption, code execution, browser impact, confidentiality impact, integrity impact, or connection-limit bypass. This issue is fixed in version 6.0.28.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:22 UTC
CWE
  • CWE-248 - Uncaught Exception
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7838 records in the last 180 days details
Impacted products
Show details on NVD website

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CVE-2026-102274 (GCVE-0-2026-102274)

Vulnerability from cvelistv5 – Published: 2026-09-28 20:42 – Updated: 2026-09-29 19:38
VLAI
Title
PyJWT: Malformed RSA JWK aborts parsing of an entire JWK Set
Summary
PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.from_jwk in jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable keys. As a result, one malformed member aborts construction of the entire PyJWKSet. Consequently, applications can experience authentication failures or request-level denial of service. This issue is fixed in version 2.14.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 19:37 UTC
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7838 records in the last 180 days details
Impacted products
Vendor Product Version
jpadilla pyjwt Affected: >= 2.9.0, < 2.14.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-101099 (GCVE-0-2026-101099)

Vulnerability from cvelistv5 – Published: 2026-09-28 17:15 – Updated: 2026-10-01 14:37
VLAI
Title
ag-ui-protocol ag-ui Kotlin Community SDK SseParser.kt exceptional condition
Summary
A vulnerability was detected in ag-ui-protocol ag-ui up to 2026-09-23. This affects an unknown part of the file SseParser.kt of the component Kotlin Community SDK. Performing a manipulation results in handling of exceptional conditions. The attack may be initiated remotely. The pull request to fix this issue awaits acceptance.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:37 UTC
CWE
  • CWE-755 - Handling of Exceptional Conditions
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3873 records in the last 180 days details
Impacted products
Vendor Product Version
ag-ui-protocol ag-ui Affected: 2026-09-23
    cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.