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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.

432 vulnerabilities reference this CWE, most recent first.

CVE-2026-72639 (GCVE-0-2026-72639)

Vulnerability from cvelistv5 – Published: 2026-08-13 19:13 – Updated: 2026-08-13 20:28
VLAI
Title
Memory Allocation with Excessive Size Value in Elasticsearch Highlighting Leading to Denial of Service
Summary
Elasticsearch does not enforce an upper bound on a user-supplied count accepted by a search highlighting option, and the allocation derived from that count is not accounted against any circuit breaker. An authenticated user holding only read privileges on a single searchable index can submit one small search request that causes the node to reserve an excessively large internal data structure. The allocation occurs before the existing highlighting safety limits are evaluated, so memory exhaustion raises a fatal error that terminates the Elasticsearch node process. This results in a denial of service for the affected node and degrades cluster routing and health. The defect is not volumetric and does not depend on the size of the indexed data, so a single request is sufficient.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 19:49 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Elastic Elasticsearch Affected: 8.19.0 , ≤ 8.19.19 (semver)
Affected: 9.3.0 , ≤ 9.5.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-71314 (GCVE-0-2026-71314)

Vulnerability from cvelistv5 – Published: 2026-08-05 20:58 – Updated: 2026-08-06 13:33
VLAI
Title
Nuxt: Unauthenticated out-of-memory crash via unbounded v-for expansion in island rendering
Summary
Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an unauthenticated attacker can use a server island v-for prop, including vforToArray and , to trigger unbounded SSR memory allocation until MAX_VFOR_LENGTH = 100000 and crash the Nuxt process. This issue is fixed in 3.21.10 and 4.5.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 13:33 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
  • CWE-789 - Memory Allocation with Excessive Size Value
  • CWE-1284 - Improper Validation of Specified Quantity in Input
Impacted products
Vendor Product Version
nuxt nuxt Affected: >= 4.0.0, < 4.5.1
Affected: >= 3.1.0, < 3.21.10
Create a notification for this product.
Show details on NVD website

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CVE-2026-71218 (GCVE-0-2026-71218)

Vulnerability from cvelistv5 – Published: 2026-08-11 08:51 – Updated: 2026-08-11 13:00
VLAI
Title
Iperf3: unbounded peer-controlled allocation in iperf3 json_read() allows unauthenticated remote memory exhaustion
Summary
A flaw was found in iperf3. A remote unauthenticated attacker can exploit a vulnerability in the `JSON_read()` function, which accepts a peer-controlled message length and allocates memory without an upper bound. This allows the attacker to trigger excessive memory consumption, leading to a Denial of Service (DoS) through memory exhaustion, severe slowdown, or termination of the iperf3 service.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 12:54 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Date Public
2026-08-11 08:13
Show details on NVD website

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CVE-2026-70377 (GCVE-0-2026-70377)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-10 11:44
VLAI
Title
imagecli - Uncontrolled Memory Allocation via Unbounded scale Ratio Causes Denial of Service
Summary
imagecli's pipeline operation (Scale::apply in src/image_ops.rs) computes output width/height as (dimension as f32 * ratio) as u32 with no upper-bound validation on the CLI-supplied ratio, which is parsed via nom::number::complete::float with no range check. Any application embedding imagecli as a library and accepting user-controlled pipeline strings is remotely crashable with a single request.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:13 UTC
CWE
  • CWE-789 - Uncontrolled Memory Allocation
References
Impacted products
Vendor Product Version
theotherphil imagecli Affected: 0 , ≤ 0.2.1 (custom)
Create a notification for this product.
Date Public
2026-08-05 06:58
Credits
Show details on NVD website

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CVE-2026-69702 (GCVE-0-2026-69702)

Vulnerability from cvelistv5 – Published: 2026-08-04 17:45 – Updated: 2026-08-14 16:51
VLAI
Title
SnailJob 1.7.0 Denial of Service via FuryUtil.deserialize OOM
Summary
SnailJob 1.7.0 contains a denial of service vulnerability in the FuryUtil.deserialize helper that allows authenticated attackers to crash the server by supplying a crafted Zstandard-compressed payload with an inflated frame_content_size field in the frame header. Attackers can store a base64-encoded Zstandard payload declaring an arbitrarily large decompressed size in a retry task argument, causing the JVM to attempt an unbounded array allocation and triggering an unrecoverable java.lang.OutOfMemoryError when the task is dispatched through the retry-task pipeline.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 19:37 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
aizuda SnailJob (snail-job) Affected: 1.7.0 (semver)
    cpe:2.3:a:aizuda:snail-job:1.7.0:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-69219 (GCVE-0-2026-69219)

Vulnerability from cvelistv5 – Published: 2026-08-18 16:23 – Updated: 2026-08-19 14:51
VLAI
Title
RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation
Summary
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 14:51 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Show details on NVD website

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CVE-2026-67589 (GCVE-0-2026-67589)

Vulnerability from cvelistv5 – Published: 2026-08-05 05:28 – Updated: 2026-08-06 15:37
VLAI
Title
Apache Qpid ProtonJ2: Type size/count handling can lead to excessive allocation pre-authentication
Summary
A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 15:06 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Apache Software Foundation Apache Qpid ProtonJ2 Affected: 0 , ≤ 1.1.0 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-67551 (GCVE-0-2026-67551)

Vulnerability from cvelistv5 – Published: 2026-08-05 05:27 – Updated: 2026-08-06 15:37
VLAI
Title
Apache Qpid Proton Dotnet: Type size/count handling can lead to excessive allocation pre-authentication
Summary
pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-Dotnet: through 1.0.0. Users are recommended to upgrade to version 1.1.0, which fixes the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 15:04 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Show details on NVD website

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CVE-2026-67211 (GCVE-0-2026-67211)

Vulnerability from cvelistv5 – Published: 2026-09-11 17:49 – Updated: 2026-09-14 18:50
VLAI
Title
Apache OpenNLP: OOM DoS via Unbounded Array Allocation in SymSpellModelSerializer
Summary
OOM Denial of Service via Unbounded Map Pre-Sizing in Apache OpenNLP SymSpellModelSerializer Versions Affected: - 3.0.0-M4 - 3.0.0-M5 (The opennlp-spellcheck extension was introduced in 3.0.0-M4. Releases 1.x and 2.x do not contain the affected code.) Description: The SymSpellModelSerializer.create() method reads two 32-bit signed integer count fields (unigramCount and bigramCount) from a binary SymSpell model stream and passes each value directly to LinkedHashMap.newLinkedHashMap() after validating only that it is non-negative. No upper bound is applied, so the count is fully attacker-controlled when the model file originates from an untrusted source. A crafted .bin model file in which either count field is set to Integer.MAX_VALUE (or any value large enough to exhaust the available heap) causes the map to be pre-sized to a capacity of 2^30 entries. The oversized backing array is allocated on the first put() into that map, requesting 4–8 GB depending on whether compressed oops are in effect, and the load fails with an OutOfMemoryError. Because the count fields sit immediately after a fixed-size header (magic, format version, three UTF strings, the configuration fields, and the edit-distance identifier) the attacker pays no meaningful size cost to weaponize a payload: a file of well under 100 bytes plus a single real entry is sufficient to crash a JVM that loads it. Any code path that deserializes a SymSpell model is affected, including SymSpellModels.deserialize(InputStream), SymSpellModels.fromBytes(byte[]), classpath model loading via SymSpellModelResolver.resolveByLanguage(String), the CorrectTextTool command-line tool, and model-archive loading through the registered ArtifactSerializer. The opennlp-spellcheck extension ships in the official OpenNLP binary distribution. The practical impact is denial of service against processes that load SymSpell model files from untrusted or semi-trusted origins. Mitigation: - 3.x users should upgrade to 3.0.0-M6. Note: The fix applies an upper bound to both count fields, checked before the map is pre-sized; counts that are negative or exceed the bound cause an IOException to be thrown and the read to fail fast with no large allocation. The bound is the existing AbstractModelReader.MAX_ENTRIES limit introduced earlie, which the current change promotes to public visibility so that serializers implementing their own binary format can share it. The default bound is 10,000,000, which is well above the entry counts of legitimate SymSpell dictionaries but far below any value that would threaten heap exhaustion. Deployments that legitimately need to load larger dictionaries can raise the limit at JVM startup by setting the OPENNLP_MAX_ENTRIES system property to the desired positive integer (e.g. -DOPENNLP_MAX_ENTRIES=50000000); invalid or non-positive values fall back to the default. Note that this property is shared with the model-reader limit and raising it relaxes both. Users who cannot upgrade immediately should treat all SymSpell .bin model files as untrusted input unless their provenance is verified, and should avoid loading models supplied by end users or fetched from third-party repositories without integrity checks.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 18:49 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Apache Software Foundation Apache OpenNLP Affected: 3.0.0-M4 , < 3.0.0-M6 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-66733 (GCVE-0-2026-66733)

Vulnerability from cvelistv5 – Published: 2026-08-06 12:58 – Updated: 2026-08-06 17:54 X_Open Source
VLAI
Title
Sonic 3 A.I.R. Unbounded Memory Allocation DoS via ReceivedPacketCache
Summary
Sonic 3 A.I.R. before commit 2492d18 contains an unbounded memory allocation vulnerability in ReceivedPacketCache::enqueuePacket() that allows unauthenticated remote attackers to crash the server process by sending a crafted UDP packet with mUniquePacketID set to the maximum uint32 value. The mUniquePacketID field is read directly from the UDP wire-format packet header without bounds checking, causing the server to allocate one CacheItem per missing packet ID gap, exhausting available host memory and propagating an uncaught std::bad_alloc exception to std::terminate().
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 17:53 UTC
CWE
  • CWE-789 - Memory Allocation with Excessive Size Value
Impacted products
Vendor Product Version
Eukaryot sonic3air Affected: 0 , ≤ 26.03.28.0 (custom)
Unaffected: 2492d1882cd2cf1cc1d7415729ce5c4fd686cd4f (git)
Create a notification for this product.
Date Public
2026-07-29 00:00
Show details on NVD website

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          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T12:58:05.286Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/Eukaryot/sonic3air/commit/2492d1882cd2cf1cc1d7415729ce5c4fd686cd4f"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/sonic-3-a-i-r-unbounded-memory-allocation-dos-via-receivedpacketcache"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "Sonic 3 A.I.R. Unbounded Memory Allocation DoS via ReceivedPacketCache",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-66733",
    "datePublished": "2026-08-06T12:58:05.286Z",
    "dateReserved": "2026-07-27T16:27:47.647Z",
    "dateUpdated": "2026-08-06T17:54:02.677Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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.