Common Weakness Enumeration
CWE-789
AllowedMemory 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.
331 vulnerabilities reference this CWE, most recent first.
CVE-2026-112048 (GCVE-0-2026-112048)
Vulnerability from cvelistv5 – Published: 2026-10-18 12:19 – Updated: 2026-10-20 15:31
VLAI
EPSS
VEX
Title
libspatialite through 5.1.0 Uncontrolled Memory Allocation via ParseWkbPolygon Ring Count
Summary
libspatialite through 5.1.0 fails to validate the polygon ring count in ParseWkbPolygon, allowing attackers to trigger uncontrolled interior-ring allocation via crafted geometry BLOBs. Attackers can supply a crafted polygon in a SpatiaLite database or ST_GeomFromWKB input to crash the process or corrupt heap memory on 32-bit builds.
Severity
6.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 15:31 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://hackmd.io/@haindpwn/libspatialite-wkb-geo… | third-party-advisory |
| https://www.gaia-gis.it/fossil/libspatialite/file… | technical-description |
| https://www.vulncheck.com/advisories/libspatialit… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SpatiaLite | libspatialite |
Affected:
0 , ≤ 5.1.0
(custom)
|
Date Public
2026-10-17 17:52
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CVE-2026-111551 (GCVE-0-2026-111551)
Vulnerability from cvelistv5 – Published: 2026-10-28 16:45 – Updated: 2026-11-05 17:13
VLAI
EPSS
VEX
Title
Apache Kafka: Denial of service in Kafka Streams and client deserializers via unbounded memory allocation
Summary
Several Kafka deserialization paths read a size or count field from input data and use it directly to allocate an array, collection, or byte buffer, with no check against the bytes actually available. A small crafted input can therefore declare a very large size and force a multi-gigabyte allocation. The affected paths are, in Kafka Streams, ProcessorRecordContext (header count), ChangedDeserializer (varint value length), CombinedKeySchema (foreign-key length, which could also produce a negative size), ProcessorMetadata (key length), and AssignmentInfo group-assignment decoding; and, in the clients library, ListDeserializer (used by ListSerde).
Impact:
An attacker can trigger the oversized allocation and raise an OutOfMemoryError that crashes the affected consumer or Kafka Streams thread; the broker and the rest of the cluster are unaffected. The reachable surface depends on the path: writing a crafted record to a Streams application's internal changelog or repartition topics, or committing crafted offset metadata to its consumer group (Streams internal paths); writing a crafted record to any topic that a consumer reads with ListSerde (ListDeserializer); or, as a member of a Streams consumer group, returning crafted assignment data when elected leader (AssignmentInfo). Because a crafted record remains in its topic, the error can recur on restart. The record size limit (max.message.bytes) does not help, because the allocation is driven by a size field rather than by the input's length.
Mitigation:
Upgrade to Apache Kafka 4.2.2, 4.3.2, or 4.4.0. Where authorization is enabled, restrict write access to each application's internal topics and consumer group to its own principal, and restrict who can produce to topics that are consumed with ListSerde.
Resolution:
From Apache Kafka 4.2.2, 4.3.2, and 4.4.0: these deserialization paths validate the declared size against the remaining input before allocating and reject input that fails the check.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 17:13 UTC
CWE
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://kafka.apache.org/cve-list | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Kafka |
Affected:
0.10.0.0 , ≤ 4.1.2
(semver)
Affected: 4.2.0 , ≤ 4.2.1 (semver) Affected: 4.3.0 , ≤ 4.3.1 (semver) |
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CVE-2026-111279 (GCVE-0-2026-111279)
Vulnerability from cvelistv5 – Published: 2026-10-15 21:43 – Updated: 2026-10-16 19:43
VLAI
EPSS
VEX
Title
Dragonfly through 2.0.2 Unbounded Memory Allocation via Negative COUNT in HRANDFIELD, ZRANDMEMBER and SRANDMEMBER
Summary
Dragonfly through 2.0.2 contains an unbounded memory allocation vulnerability that allows unauthenticated clients to exhaust memory by passing a negative COUNT to HRANDFIELD, ZRANDMEMBER or SRANDMEMBER. Attackers can send a single command against a one-element key with a huge negative COUNT to trigger the OOM killer, terminating the instance for all clients.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:43 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/dragonflydb/dragonfly/issues/8578 | issue-tracking |
| https://github.com/dragonflydb/dragonfly/blob/8ce… | technical-description |
| https://github.com/dragonflydb/dragonfly/blob/8ce… | technical-description |
| https://github.com/dragonflydb/dragonfly/blob/8ce… | technical-description |
| https://github.com/dragonflydb/dragonfly | product |
| https://www.vulncheck.com/advisories/dragonfly-th… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| dragonflydb | dragonfly |
Affected:
0 , ≤ 2.0.2
(semver)
cpe:2.3:a:dragonflydb:dragonfly:*:*:*:*:*:*:*:* |
Date Public
2026-10-15 00:00
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CVE-2026-111108 (GCVE-0-2026-111108)
Vulnerability from cvelistv5 – Published: 2026-10-28 16:38 – Updated: 2026-11-05 19:16
VLAI
EPSS
VEX
Title
Apache Kafka: Broker OutOfMemoryError via array allocation amplification in code-generated protocol readers
Summary
Apache Kafka's code-generated protocol readers pre-size an array's collection from the element count declared by the sender. That count is checked only against the bytes remaining in the request buffer, which assumes about one byte per element; because most elements need several bytes, a request can declare far more elements than the buffer holds and still pass. For a keyed array the reader then allocates an ImplicitLinkedHashCollection of capacity (2 * count +1), so a request of a few tens of megabytes can force a heap allocation several times larger before any element is read. The pattern is emitted into every generated reader, so it affects all Kafka API types with an array field.
Impact:
Request parsing happens before any authorization check. On a listener that does not require authentication (for example PLAINTEXT), an unauthenticated attacker can send a few concurrent requests that each declare a very large=
array length and allocate many times their wire size in broker heap, crashing the broker with an OutOfMemoryError. The reporter demonstrated three concurrent ~90 MB ProduceRequest (v3) connections exhausting a 1 GB heap (~8x amplification). On listeners that require authentication, the attacker needs valid credentials but no specific ACL, since parsing precedes authorization..
Mitigation:
Upgrade to Apache Kafka 4.2.2, 4.3.2, or 4.4.0. Until then, lowering socket.request.max.bytes and restricting network access to broker listeners reduces, but does not remove, exposure.
Resolution:
From Apache Kafka 4.2.2, 4.3.2, and 4.4.0: generated readers cap the initial array pre-allocation at MessageUtil.MAX_PREALLOCATED_ARRAY_CAPACITY (1000) and grow it on demand, and reject a declared array length above MessageUtil.MAX_ARRAY_LENGTH (1,000,000).
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 19:16 UTC
CWE
Assigner
apache
CNA
References
2 references
| URL | Tags |
|---|---|
| https://kafka.apache.org/cve-list | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/1… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Kafka |
Affected:
3.3.0 , ≤ 4.1.2
(semver)
Affected: 4.2.0 , ≤ 4.2.1 (semver) Affected: 4.3.0 , ≤ 4.3.1 (semver) |
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CVE-2026-110258 (GCVE-0-2026-110258)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-14 16:10
VLAI
EPSS
VEX
Title
OW2 ASM 3.0 before 9.11 Excessive Memory Allocation via Multiple RET Instructions
Summary
OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors() that fails to enforce the single-RET-per-JSR rule. Attackers can supply a crafted invalid class file with multiple RET instructions for one JSR, triggering a roughly 2 GB allocation that crashes the JVM.
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5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 16:10 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://gitlab.ow2.org/asm/asm/-/merge_requests/458 | patch |
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| https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/… | technical-description |
| https://asm.ow2.io/versions.html | release-notes |
| https://www.vulncheck.com/advisories/ow2-asm-3.0-… | third-party-advisory |
Date Public
2026-08-19 00:00
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CVE-2026-110257 (GCVE-0-2026-110257)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-14 15:55
VLAI
EPSS
VEX
Title
OW2 ASM 5.0 before 9.11 Excessive Memory Allocation via BootstrapMethods Attribute
Summary
OW2 ASM 5.0 before 9.11 contains an excessive memory allocation vulnerability in ClassReader.readBootstrapMethodsAttribute() that sizes an int array from num_bootstrap_methods without validating attribute_length. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB allocation, causing an OutOfMemoryError that crashes the JVM or consuming thread.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:49 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
VulnCheck
CNA
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|---|---|
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| https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/… | technical-description |
| https://asm.ow2.io/versions.html | release-notes |
| https://www.vulncheck.com/advisories/ow2-asm-5.0-… | third-party-advisory |
Date Public
2026-08-13 00:00
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CVE-2026-109149 (GCVE-0-2026-109149)
Vulnerability from cvelistv5 – Published: 2026-10-13 09:30 – Updated: 2026-10-16 21:42
VLAI
EPSS
VEX
Title
beautifier js-beautify memory allocation
Summary
A weakness has been identified in beautifier js-beautify up to 1.15.1/2.0.3. The affected element is an unknown function. Executing a manipulation can lead to uncontrolled memory allocation. The attack may be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 21:42 UTC
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/416885 | vdb-entry |
| https://vuldb.com/vuln/416885/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-109149 | third-party-advisory |
| https://vuldb.com/submit/978621 | third-party-advisory |
| https://github.com/beautifier/js-beautify/issues/2522 | issue-tracking |
| https://github.com/beautifier/js-beautify/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| beautifier | js-beautify |
Affected:
1.15.0
Affected: 1.15.1 Affected: 2.0.0 Affected: 2.0.1 Affected: 2.0.2 Affected: 2.0.3 cpe:2.3:a:beautifier:js-beautify:*:*:*:*:*:*:*:* |
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CVE-2026-108683 (GCVE-0-2026-108683)
Vulnerability from cvelistv5 – Published: 2026-10-11 14:30 – Updated: 2026-10-13 13:45 X_Open Source
VLAI
EPSS
VEX
Title
zhayujie CowAgent Media Download memory allocation
Summary
A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9. The impacted element is an unknown function of the component Media Download Handler. Such manipulation leads to uncontrolled memory allocation. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.2.0 is sufficient to resolve this issue. The name of the patch is b7967210268fc4c0afea1078223e74e7e96a8a54. You should upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 13:44 UTC
Assigner
VulDB
CNA
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/416391 | vdb-entry |
| https://vuldb.com/vuln/416391/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-108683 | third-party-advisory |
| https://vuldb.com/submit/958015 | third-party-advisory |
| https://github.com/lche511/cve/tree/main/CowAgent… | exploit |
| https://github.com/zhayujie/CowAgent/commit/b7967… | patch |
| https://github.com/zhayujie/CowAgent/releases/tag/2.2.0 | patch |
| https://github.com/zhayujie/CowAgent/ | product |
Impacted products
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CVE-2026-108359 (GCVE-0-2026-108359)
Vulnerability from cvelistv5 – Published: 2026-10-22 17:32 – Updated: 2026-10-29 11:51
VLAI
EPSS
VEX
Title
PhpSpreadsheet ODS Reader: Unbounded number-rows-repeated → CPU & Memory Exhaustion (DoS)
Summary
PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0, Ods::processTableRow in src/PhpSpreadsheet/Reader/Ods.php accepts an unbounded table:number-rows-repeated attribute from an ODS table row. When the row contains a value, the reader materializes a cell for every repetition without checking the spreadsheet row limit, so a small attacker-controlled ODS file can consume substantial CPU and memory and terminate the PHP worker. Column repetition is separately bounded and is not part of this vulnerability. This issue is fixed in versions 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 11:51 UTC
CWE
Assigner
GitHub_M
CNA
References
11 references
| URL | Tags |
|---|---|
| https://github.com/PHPOffice/PhpSpreadsheet/secur… | x_refsource_CONFIRM |
| https://github.com/PHPOffice/PhpSpreadsheet/commi… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/commi… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/commi… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/commi… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/commi… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/relea… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/relea… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/relea… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/relea… | x_refsource_MISC |
| https://github.com/PHPOffice/PhpSpreadsheet/relea… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PHPOffice | PhpSpreadsheet |
Affected:
< 1.30.7
Affected: >= 2.0.0, < 2.1.19 Affected: >= 2.2.0, < 2.4.8 Affected: >= 3.3.0, < 3.10.8 Affected: >= 4.0.0, < 5.10.0 |
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CVE-2026-108106 (GCVE-0-2026-108106)
Vulnerability from cvelistv5 – Published: 2026-10-09 14:33 – Updated: 2026-10-13 16:51
VLAI
EPSS
VEX
Title
Xerial snappy-java before 1.1.10.9 Unbounded Memory Allocation Denial of Service
Summary
Xerial snappy-java before 1.1.10.9 contains an unbounded memory allocation vulnerability that allows attackers to exhaust JVM memory by declaring a large uncompressed length in compressed input. Attackers can supply a few crafted bytes to Snappy.uncompress, uncompressString, SnappyInputStream or SnappyFramedInputStream to force allocations up to 2 GB, causing OutOfMemoryError and denial of service.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:50 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/xerial/snappy-java/security/ad… | vendor-advisory |
| https://github.com/xerial/snappy-java/commit/943c… | patch |
| https://github.com/xerial/snappy-java/releases/ta… | release-notes |
| https://github.com/xerial/snappy-java/blob/v1.1.1… | technical-description |
| https://github.com/xerial/snappy-java | product |
| https://www.vulncheck.com/advisories/xerial-snapp… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| xerial | snappy-java |
Affected:
0 , < 1.1.10.9
(custom)
Unaffected: 1.1.10.9 (custom) cpe:2.3:a:xerial:snappy-java:*:*:*:*:*:*:*:* |
Date Public
2026-10-03 00:00
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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.