Common Weakness Enumeration
CWE-248
AllowedUncaught Exception
Abstraction: Base · Status: Draft
An exception is thrown from a function, but it is not caught.
420 vulnerabilities reference this CWE, most recent first.
CVE-2026-59892 (GCVE-0-2026-59892)
Vulnerability from cvelistv5 – Published: 2026-07-08 16:03 – Updated: 2026-07-08 19:41
VLAI
EPSS
VEX
Title
OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header
Summary
OpenTelemetry JavaScript is the OpenTelemetry JavaScript client. Prior to 2.9.0, @opentelemetry/propagator-jaeger decodes incoming uber-trace-id and uberctx-* HTTP header values with decodeURIComponent() without handling decode errors, allowing an unauthenticated remote attacker to send a malformed percent-encoded value that throws an uncaught URIError and terminates a Node.js process using JaegerPropagator as the active propagator. This issue is fixed in version 2.9.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/open-telemetry/opentelemetry-j… | x_refsource_CONFIRM |
| https://github.com/open-telemetry/opentelemetry-j… | x_refsource_MISC |
| https://github.com/open-telemetry/opentelemetry-j… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| open-telemetry | opentelemetry-js |
Affected:
< 2.9.0
|
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CVE-2026-59875 (GCVE-0-2026-59875)
Vulnerability from cvelistv5 – Published: 2026-07-08 15:20 – Updated: 2026-07-09 13:45
VLAI
EPSS
VEX
Title
node-tar: Uncaught Exception DoS via NUL byte in PAX path/linkpath records
Summary
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.17, node-tar does not strip NUL bytes from PAX path and linkpath records in src/pax.ts, allowing a crafted archive with values to reach fs.lstat or fs.open and terminate the process with an uncaught exception. This issue is fixed in version 7.5.17.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/isaacs/node-tar/security/advis… | x_refsource_CONFIRM |
| https://github.com/isaacs/node-tar/commit/7a635c2… | x_refsource_MISC |
| https://github.com/isaacs/node-tar/releases/tag/v7.5.17 | x_refsource_MISC |
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CVE-2026-59162 (GCVE-0-2026-59162)
Vulnerability from cvelistv5 – Published: 2026-07-10 15:51 – Updated: 2026-07-10 18:40
VLAI
EPSS
VEX
Title
Excelize: Negative shared-string index causes panic in GetCellValue and GetRows
Summary
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, Excelize parses shared-string cell values with strconv.Atoi and checks only the upper bound before indexing the shared string slice, allowing an XLSX file containing a shared-string cell with -1 to trigger sharedStrings[-1] and panic when read through GetCellValue or GetRows. This issue is fixed in version 2.11.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/qax-os/excelize/security/advis… | x_refsource_CONFIRM |
| https://github.com/qax-os/excelize/pull/2331 | x_refsource_MISC |
| https://github.com/qax-os/excelize/commit/93f0b3c… | x_refsource_MISC |
| https://github.com/qax-os/excelize/releases/tag/v2.11.0 | x_refsource_MISC |
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CVE-2026-58208 (GCVE-0-2026-58208)
Vulnerability from cvelistv5 – Published: 2026-07-08 20:17 – Updated: 2026-07-09 14:04
VLAI
EPSS
VEX
Title
NATS Server: MQTT-over-WebSocket Path Can Crash WebSocket-Only JetStream Servers Before MQTT Is Enabled
Summary
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a WebSocket listener could route requests for the MQTT-over-WebSocket path into MQTT handling even when MQTT was not configured, allowing an unauthenticated client with access to the WebSocket listener to reach uninitialized MQTT state and crash the server process. This issue is fixed in versions 2.14.3 and 2.12.12.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/nats-io/nats-server/security/a… | x_refsource_CONFIRM |
| https://github.com/nats-io/nats-server/commit/73b… | x_refsource_MISC |
| https://github.com/nats-io/nats-server/commit/837… | x_refsource_MISC |
| https://github.com/nats-io/nats-server/releases/t… | x_refsource_MISC |
| https://github.com/nats-io/nats-server/releases/t… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nats-io | nats-server |
Affected:
>= 2.14.0-RC.1, < 2.14.3
Affected: < 2.12.12 |
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CVE-2026-55780 (GCVE-0-2026-55780)
Vulnerability from cvelistv5 – Published: 2026-07-10 16:49 – Updated: 2026-07-13 18:14
VLAI
EPSS
VEX
Title
NanaZip: Uncaught exception / unbounded allocation in NanaZip .NET single-file Extract() via unvalidated entry Size
Summary
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp sizes its extraction buffer from the bundle entry Size field, which is only checked for sign and is not validated against the real file size. A crafted bundle can cause an attacker-chosen allocation inside Extract, where std::bad_alloc or std::length_error can escape across the COM STDMETHODCALLTYPE boundary and crash the process. This issue is fixed in version 6.5.1749.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/M2Team/NanaZip/security/adviso… | x_refsource_CONFIRM |
| https://github.com/M2Team/NanaZip/commit/ad62e3b4… | x_refsource_MISC |
| https://github.com/M2Team/NanaZip/releases/tag/6.… | x_refsource_MISC |
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CVE-2026-55517 (GCVE-0-2026-55517)
Vulnerability from cvelistv5 – Published: 2026-06-23 17:24 – Updated: 2026-06-23 17:52
VLAI
EPSS
VEX
Title
Deno: Denial of service via non-ASCII bytes in WebSocket response headers
Summary
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.5, a Deno program that opens a client WebSocket connection could be crashed by the remote server. While handling the WebSocket handshake response, Deno parsed the Sec-WebSocket-Protocol and Sec-WebSocket-Extensions response headers in a way that assumed their bytes were always printable ASCII. A response header containing non-visible-ASCII bytes (0x80-0xFF) caused a panic that aborted the entire Deno process. This vulnerability is fixed in 2.7.5.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/denoland/deno/security/advisor… | x_refsource_CONFIRM |
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CVE-2026-54908 (GCVE-0-2026-54908)
Vulnerability from cvelistv5 – Published: 2026-07-01 19:34 – Updated: 2026-07-02 15:54
VLAI
EPSS
VEX
Title
Pion DTLS: Denial of service via panic while parsing a crafted ECDHE_PSK ServerKeyExchange message
Summary
Pion DTLS is a Go implementation of Datagram Transport Layer Security. Versions prior to 3.1.4 are vulnerable to Remote Denial of Service via panic while parsing a crafted ECDHE_PSK ServerKeyExchange message. This issue has been fixed in version 3.1.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pion/dtls/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/pion/dtls/pull/839 | x_refsource_MISC |
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CVE-2026-54775 (GCVE-0-2026-54775)
Vulnerability from cvelistv5 – Published: 2026-07-08 22:13 – Updated: 2026-07-09 14:20
VLAI
EPSS
VEX
Title
CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service.
Summary
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, a CoreWCF service listening on a Kafka topic stops processing new records from that topic when KafkaTransportPump receives a null-value tombstone record, causing a persistent endpoint denial of service for attackers with produce permission. This issue is fixed in versions 1.8.1 and 1.9.1.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/CoreWCF/CoreWCF/security/advis… | x_refsource_CONFIRM |
| https://github.com/CoreWCF/CoreWCF/commit/1a229d0… | x_refsource_MISC |
| https://github.com/CoreWCF/CoreWCF/commit/6d7431e… | x_refsource_MISC |
| https://github.com/CoreWCF/CoreWCF/commit/8f95f3a… | x_refsource_MISC |
| https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1 | x_refsource_MISC |
| https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1 | x_refsource_MISC |
Impacted products
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CVE-2026-50328 (GCVE-0-2026-50328)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:06 – Updated: 2026-07-14 19:38
VLAI
EPSS
VEX
Title
Windows Server Update Service (WSUS) Tampering Vulnerability
Summary
Uncaught exception in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.
Severity
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9339
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.9020
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26226
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26226
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23291
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23291
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9339
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9339
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9020
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9020
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5386
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33158
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33158
(custom)
|
Date Public
2026-07-14 14:00
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CVE-2026-50129 (GCVE-0-2026-50129)
Vulnerability from cvelistv5 – Published: 2026-06-24 19:50 – Updated: 2026-06-25 13:25
VLAI
EPSS
VEX
Title
Mastodon: Persistent anonymous DoS via unhandled NoMethodError in MATH_TRANSFORMER
Summary
Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.11, 4.4.18, and 4.3.24, a DoS can be triggered by (Uncaught Exception vulerability), due to missing exception handling in the math sanitizer. Malformed <math> nodes can result in a DoS of a whole server or targeted users services, depending on the type of action that includes the malformed nodes and the services interacting with it. This vulnerability is fixed in 4.5.11, 4.4.18, and 4.3.24.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-248 - Uncaught Exception
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/mastodon/mastodon/security/adv… | x_refsource_CONFIRM |
Impacted products
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"discovery": "UNKNOWN"
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"title": "Mastodon: Persistent anonymous DoS via unhandled NoMethodError in MATH_TRANSFORMER"
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.