Common Weakness Enumeration

CWE-789

Allowed

Memory Allocation with Excessive Size Value

Abstraction: Variant · Status: Draft

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

320 vulnerabilities reference this CWE, most recent first.

CVE-2026-42241 (GCVE-0-2026-42241)

Vulnerability from cvelistv5 – Published: 2026-05-07 18:52 – Updated: 2026-05-08 21:30
VLAI
Title
ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width
Summary
ParquetSharp is a .NET library for reading and writing Apache Parquet files. From version 18.1.0 to before version 23.0.0.1, DecimalConverter.ReadDecimal makes a stackalloc using what might be an attacker-supplied value. If an attacker declares a decimal column with some unreasonable width, this could lead to a stack overflow. In a service environment, this would potentially take down a service. This affects applications using ParquetSharp to read untrusted Parquet files in a network service. This issue has been patched in version 23.0.0.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
Vendor Product Version
G-Research ParquetSharp Affected: >= 18.1.0, < 23.0.0.1
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Show details on NVD website

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CVE-2026-42189 (GCVE-0-2026-42189)

Vulnerability from cvelistv5 – Published: 2026-05-08 19:49 – Updated: 2026-05-11 14:23
VLAI
Title
Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth
Summary
Russh is a Rust SSH client & server library. Prior to version 0.60.1, a pre-authentication denial-of-service vulnerability exists in the server's keyboard-interactive authentication handler. A malicious client can crash any russh-based server that implements keyboard-interactive auth (e.g., for 2FA/TOTP) with a single malformed packet, requiring no credentials. This issue has been patched in version 0.60.1.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Impacted products
Vendor Product Version
Eugeny russh Affected: < 0.60.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-42154 (GCVE-0-2026-42154)

Vulnerability from cvelistv5 – Published: 2026-05-04 18:13 – Updated: 2026-07-15 00:58
VLAI
Title
Prometheus: remote read endpoint allows denial of service via crafted snappy payload
Summary
Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-789 - Memory Allocation with Excessive Size Value
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
Impacted products
Vendor Product Version
prometheus prometheus Affected: < 3.5.3
Affected: >= 3.6.0, < 3.11.3
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Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:0.152.1-1.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.152.1-1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
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Red Hat RHEM 1.0 for RHEL 9 Unaffected: 0:1.0.3-1.el9em , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Logging Subsystem for Red Hat OpenShift 6.4 Unaffected: 1782405469 , < * (rpm)
    cpe:/a:redhat:logging:6.4::el9
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Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 Unaffected: 1782374537 , < * (rpm)
    cpe:/a:redhat:acm:2.13::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502022 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502465 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502025 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502494 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502401 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502403 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502023 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502029 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Edge Manager 1.0 Unaffected: 1783502445 , < * (rpm)
    cpe:/a:redhat:edge_manager:1.0::el9
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Red Hat Red Hat Hardened Images Unaffected: 2.19.0-1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat Hardened Images Unaffected: 0.153.0-1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat Hardened Images Unaffected: 0.155.0-0.1.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat OpenShift Container Platform 4.22 Unaffected: 1782859326 , < * (rpm)
    cpe:/a:redhat:openshift:4.22::el9
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Red Hat File Integrity Operator     cpe:/a:redhat:openshift_file_integrity_operator:1
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Red Hat Logging Subsystem for Red Hat OpenShift     cpe:/a:redhat:logging:6
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Red Hat Multicluster Global Hub     cpe:/a:redhat:multicluster_globalhub
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Red Hat Network Observability Operator     cpe:/a:redhat:network_observ_optr:1
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Red Hat OpenShift Lightspeed     cpe:/a:redhat:openshift_lightspeed
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Red Hat OpenShift Service Mesh 2     cpe:/a:redhat:service_mesh:2
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Red Hat OpenShift Service Mesh 3     cpe:/a:redhat:service_mesh:3
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Red Hat Red Hat Advanced Cluster Management for Kubernetes 2     cpe:/a:redhat:acm:2
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Red Hat Red Hat Ceph Storage 5     cpe:/a:redhat:ceph_storage:5
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Red Hat Red Hat Ceph Storage 6     cpe:/a:redhat:ceph_storage:6
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Red Hat Red Hat Ceph Storage 7     cpe:/a:redhat:ceph_storage:7
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Red Hat Red Hat Ceph Storage 8     cpe:/a:redhat:ceph_storage:8
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Red Hat Red Hat Ceph Storage 9     cpe:/a:redhat:ceph_storage:9
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Red Hat Red Hat Edge Manager 1     cpe:/a:redhat:edge_manager:1
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Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
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Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Red Hat Red Hat OpenShift GitOps     cpe:/a:redhat:openshift_gitops:1
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Red Hat Red Hat OpenStack Platform 18.0     cpe:/a:redhat:openstack:18.0
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Red Hat Red Hat Quay 3     cpe:/a:redhat:quay:3
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Red Hat Red Hat Trusted Artifact Signer     cpe:/a:redhat:trusted_artifact_signer:1
Create a notification for this product.
Show details on NVD website

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CVE-2026-42146 (GCVE-0-2026-42146)

Vulnerability from cvelistv5 – Published: 2026-05-04 17:53 – Updated: 2026-05-06 13:44
VLAI
Title
CImg Library: Uncontrolled memory allocation via nb_colors field in _load_bmp
Summary
CImg Library is a C++ library for image processing. Prior to commit c3aacf5, the nb_colors field read from the BMP file header is used directly to compute an allocation size without validating it against the remaining file size. A crafted BMP file with a large nb_colors value triggers an out-of-memory condition, crashing any application that uses CImg to load untrusted BMP files. This issue has been patched via commit c3aacf5.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Impacted products
Vendor Product Version
GreycLab CImg Affected: < c3aacf5b96ac1e54b7af1957c6737dbf3949f6d3
Create a notification for this product.
Show details on NVD website

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CVE-2026-41314 (GCVE-0-2026-41314)

Vulnerability from cvelistv5 – Published: 2026-04-22 21:08 – Updated: 2026-04-23 14:21
VLAI
Title
pypdf: Manipulated FlateDecode image dimensions can exhaust RAM
Summary
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using `/FlateDecode` with large size values. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Impacted products
Vendor Product Version
py-pdf pypdf Affected: < 6.10.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-41312 (GCVE-0-2026-41312)

Vulnerability from cvelistv5 – Published: 2026-04-22 21:02 – Updated: 2026-04-23 13:45
VLAI
Title
pypdf: Manipulated FlateDecode predictor parameters can exhaust RAM
Summary
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions prior to 6.10.2 can craft a PDF which leads to the RAM being exhausted. This requires accessing a stream compressed using `/FlateDecode` with a `/Predictor` unequal 1 and large predictor parameters. This has been fixed in pypdf 6.10.2. As a workaround, one may apply the changes from the patch manually.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Impacted products
Vendor Product Version
py-pdf pypdf Affected: < 6.10.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-41178 (GCVE-0-2026-41178)

Vulnerability from cvelistv5 – Published: 2026-06-04 14:38 – Updated: 2026-06-04 15:46
VLAI
Title
OpenTelemetry-Go's baggage parsing no longer caps raw header length
Summary
OpenTelemetry-Go is the Go implementation of OpenTelemetry. Versions 1.41.0 and 1.43.0 removed raw-length rejection and it causes `Parse` to process arbitrarily large/invalid baggage headers and log errors, enabling DoS via oversized inputs. Versions 1.42.0 and 1.44.0 fix the issue.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
Show details on NVD website

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CVE-2026-40894 (GCVE-0-2026-40894)

Vulnerability from cvelistv5 – Published: 2026-04-23 18:03 – Updated: 2026-04-23 19:22
VLAI
Title
OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers
Summary
OpenTelemetry dotnet is a dotnet telemetry framework. In OpenTelemetry.Api 0.5.0-beta.2 to 1.15.2 and OpenTelemetry.Extensions.Propagators 1.3.1 to 1.15.2, The implementation details of the baggage, B3 and Jaeger processing code in the OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators NuGet packages can allocate excessive memory when parsing which could create a potential denial of service (DoS) in the consuming application. This vulnerability is fixed in 1.15.3.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Show details on NVD website

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CVE-2026-40891 (GCVE-0-2026-40891)

Vulnerability from cvelistv5 – Published: 2026-04-23 17:54 – Updated: 2026-04-23 18:23
VLAI
Title
OpenTelemetry dotnet: Unbounded `grpc-status-details-bin` parsing in OTLP/gRPC retry handling
Summary
OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry over gRPC using the OpenTelemetry Protocol (OTLP), the exporter may parse a server-provided grpc-status-details-bin trailer during retry handling. Prior to the fix, a malformed trailer could encode an extremely large length-delimited protobuf field which was used directly for allocation, allowing excessive memory allocation and potential denial of service (DoS). This vulnerability is fixed in 1.15.2.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
Show details on NVD website

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CVE-2026-40378 (GCVE-0-2026-40378)

Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-07-14 19:37
VLAI
Title
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Summary
Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.9339 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.9020 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 21H2 Affected: 10.0.19044.0 , < 10.0.19044.7548 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.7548 (custom)
Create a notification for this product.
Microsoft Windows 11 version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7376 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.7376 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.8875 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 25H2 Affected: 10.0.26200.0 , < 10.0.26200.8875 (custom)
Create a notification for this product.
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.2269 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 Affected: 6.2.9200.0 , < 6.2.9200.26226 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 (Server Core installation) Affected: 6.2.9200.0 , < 6.2.9200.26226 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.23291 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.23291 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.9339 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.9339 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.9020 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.9020 (custom)
Create a notification for this product.
Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.5386 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.33158 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.33158 (custom)
Create a notification for this product.
Date Public
2026-07-14 14:00
Show details on NVD website

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  "dataVersion": "5.2"
}

Mitigation
Implementation Architecture and Design

Perform adequate input validation against any value that influences the amount of memory that is allocated. Define an appropriate strategy for handling requests that exceed the limit, and consider supporting a configuration option so that the administrator can extend the amount of memory to be used if necessary.

Mitigation
Operation

Run your program using system-provided resource limits for memory. This might still cause the program to crash or exit, but the impact to the rest of the system will be minimized.

No CAPEC attack patterns related to this CWE.