Weakness (CWE)
CWE-789: Memory Allocation with Excessive Size Value
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.
How to prevent it (2 mitigations)
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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.
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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.
Source: MITRE CWE-789
359 results · Feed
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High 7.5
kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length
kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds …
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Medium 5.5
Ghidra < 12.1.1 - Denial of Service via Uncontrolled Memory Allocation in Mach-O Parser
Ghidra before 12.1.1 contains an uncontrolled memory allocation vulnerability in the Mach-O binary parser that allows attackers to cause denial of service. An attacker can supply a crafted Mach-O binary with an arbitrarily large ncmds load command count value…
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Medium 5.5
Ghidra < 12.0.3 - Out-of-Memory in Rust Symbol Demangler via Malformed Symbol
Ghidra before 12.0.3 contains an out-of-memory vulnerability in the rust_demangle function that allocates unbounded output buffers without size limits. Attackers can craft malicious Rust symbol names in binaries to trigger exponential memory allocation, causi…
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High 7.5
Apache HTTP Server: mod_http2 denial of service
Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.
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Medium 5.3
OpenTelemetry-Go's baggage parsing no longer caps raw header length
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 a…
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Medium 6.1
Memory allocation with excessive size value vulnerability in Samsung Open Source rlottie allows Excessive Allocation. T…
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High 7.5
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header
Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker controlled entry size field in tar header. _read_tar() reads each entry's payload with $handle->read($$data, $block), where $block is derived from the entry's 12-byte size field i…
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Medium 6.2
Notebook Pro 2.0 Denial of Service via Notebook Name Field
Notebook Pro 2.0 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the notebook name field. Attackers can create a malicious text file containing 500 or more characters, …
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High 7.5
Nord VPN 6.14.31 Denial of Service via Password Field
Nord VPN 6.14.31 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting an excessively long string in the password field. Attackers can paste a buffer of repeated characters into the password in…
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High 7.5
Unauthenticated WebSocket binary frame causes denial of service in Mattermost Server
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and c…
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Medium 5.9
Uncontrolled Memory Allocation vulnerability in Progress Software MOVEit Automation
Uncontrolled Memory Allocation vulnerability in Progress Software MOVEit Automation allows Excessive Allocation. This issue affects MOVEit Automation: before 2025.0.11, from 2025.1.0 before 2025.1.7.
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Medium 5.5
Memory allocation with excessive size value vulnerability in Samsung Open Source Escargot allows Excessive Allocation. …
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High 7.5
iskorotkov/avro: Denial-of-Service Vulnerability in Decoder
# Memory Exhaustion via Unbounded Map Allocations in Avro Decoder ## Summary The Avro map decoder accepted attacker-controlled block-element counts from the wire format and grew the destination map without enforcing an upper bound. The slice decoder already h…
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Medium 4.3
Memory Exhaustion via Malicious 7zip File Upload
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially craf…
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High 7.5
Sticky Notes Widget 3.0.6 Denial of Service via Buffer Overflow
Sticky Notes Widget 3.0.6 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and past…
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High 7.5
My Notes Safe 5.3 Denial of Service via Buffer Overflow
My Notes Safe 5.3 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twi…
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High 7.5
Sticky Notes & Color Widgets 1.4.2 Denial of Service
Sticky Notes & Color Widgets 1.4.2 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can paste large payloads of repeated characters into note fields …
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High 7.5
Macaron Notes 5.5 Denial of Service via Buffer Overflow
Macaron Notes 5.5 contains a denial of service vulnerability that allows attackers to crash the application by creating notes with excessively long character strings. Attackers can generate a payload containing 350000 repeated characters and paste it into a n…
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High 7.5
Color Notes 1.4 Denial of Service via Long Character String
Color Notes 1.4 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350,000 repeated characters and paste it twic…
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High 7.5
Nerdbank.MessagePack: Attacker-controlled stackalloc in DateTime decoding causes process-terminating StackOverflowException
Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized time…
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High 7.5
Netty: HTTP/3 QPACK literal unbounded allocation
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final, when decoding header blocks, the non-Huffman branch of io.netty.handler.codec.http3.QpackDecoder#decodeHuffmanEncodedLiteral may execute new byte[length] for a string…
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Medium 6.5
NGINX ngx_http_scgi_module and ngx_http_uwsgi_module vulnerability
A vulnerability exists in the ngx_http_scgi_module and ngx_http_uwsgi_module modules that may result in excessive memory allocation or an over-read of data. When scgi_pass or uwsgi_pass is configured, an unauthenticated attacker with man-in-the-middle (MITM) …
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Medium 5.9
OpAMP client reads unbounded HTTP response bodies
OpenTelemetry.OpAmp.Client is the OpAMP client for OpenTelemetry .NET. Prior to 0.2.0-alpha.1, when receiving responses from the OpAMP server over HTTP, the OpAMP client allocates an unbounded buffer to read all bytes from the server, with no upper-bound on t…
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High 7.5
memono Notepad 4.2 Denial of Service via Buffer Overflow
memono Notepad 4.2 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character buffers into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it tw…
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High 7.5
Russh: Pre-auth DoS via unbounded allocation in keyboard-interactive auth
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 …
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Medium 5.3
ParquetSharp: Possible Stack Overflow When Reading a ParquetFile with Large Decimal Type Width
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 colu…
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High 7.5
rust-zserio has Unbounded Memory Allocation
### Impact When deserializing arrays, strings or bytes (blob) types zserio first reads the size of the variable, and then allocates sufficient memory to load data. Since the size is always trusted this can be abused by creating a data file with a large size v…
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Medium 5.3
Apache Thrift: Rust implementation vulnerable to CVE-2020-13949 pattern
Memory Allocation with Excessive Size Value vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.
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High 7.5CVE-2026-42154 Public exploit
Prometheus: remote read endpoint allows denial of service via crafted snappy payload
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…
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Medium 5.5
CImg Library: Uncontrolled memory allocation via nb_colors field in _load_bmp
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 larg…
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High 7.5
Apache OpenNLP: OOM DoS via Unbounded Array Allocation in AbstractModelReader
OOM Denial of Service via Unbounded Array Allocation in Apache OpenNLP AbstractModelReader Versions Affected: before 1.9.5 before 2.5.9 before 3.0.0-M3 Description: The AbstractModelReader methods getOutcomes(), getOutcomePatterns(), and getPredicates() ea…
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Medium 6.2
ObserverIP Scan Tool 1.4.0.1 Denial of Service via IP Field
ObserverIP Scan Tool 1.4.0.1 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string in the IP input field. Attackers can paste a 2000-byte buffer of repeated characters into the…
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Medium 6.2
jiNa OCR Image to Text 1.0 Denial of Service via PNG
jiNa OCR Image to Text 1.0 contains a denial of service vulnerability that allows local attackers to crash the application by processing a malformed PNG file. Attackers can create a specially crafted PNG file with an oversized buffer and trigger the crash whe…
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Medium 6.2
InfraRecorder 0.53 Denial of Service via txt File Import
InfraRecorder 0.53 contains a denial of service vulnerability that allows local attackers to crash the application by importing a maliciously crafted text file. Attackers can create a text file containing 6000 bytes of data and import it through the Edit menu…
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High 7.5
Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization
Zserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, a crafted payload as small as 4-5 bytes can force memory allocations of up to 16 GB, crashing any process with an OOM error (Denial of S…
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Critical 9.8
go-zserio has Unbounded Memory Allocation for All Platforms
### Impact When deserializing arrays, strings or bytes (blob) types zserio first reads the size of the variable, and then allocates sufficient memory to load data. Since the size is always trusted this can be abused by creating a data file with a large size v…
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Medium 5.3
OpenTelemetry dotnet: Excessive memory allocation when parsing OpenTelemetry propagation headers
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 O…
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Medium 5.3
OpenTelemetry dotnet: Unbounded `grpc-status-details-bin` parsing in OTLP/gRPC retry handling
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. Pri…
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Medium 5.3
OpenTelemetry dotnet: OTLP exporter reads unbounded HTTP response bodies
OpenTelemetry dotnet is a dotnet telemetry framework. From 1.13.1 to before 1.15.2, When exporting telemetry to a back-end/collector over gRPC or HTTP using OpenTelemetry Protocol format (OTLP), if the request results in a unsuccessful request (i.e. HTTP 4xx …
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Medium 4.8
pypdf: Manipulated FlateDecode image dimensions can exhaust RAM
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 val…