Common Weakness Enumeration

CWE-409

Allowed

Improper Handling of Highly Compressed Data (Data Amplification)

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

270 vulnerabilities reference this CWE, most recent first.

CVE-2026-107227 (GCVE-0-2026-107227)

Vulnerability from cvelistv5 – Published: 2026-10-07 20:51 – Updated: 2026-10-07 20:51
VLAI
Title
AsyncHttpClient: Unbounded WebSocket permessage-deflate decompression enables a decompression-bomb denial of service when compression is enabled
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pipeline aggregates compressed frames before WebSocketClientCompressionHandler inflates them, so webSocketMaxFrameSize and webSocketMaxBufferSize do not bound decompressed output. A malicious WebSocket peer can send a small compressed message that expands to a very large Netty buffer and exhausts JVM heap. This issue is fixed in version 3.0.14.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
AsyncHttpClient async-http-client Affected: >= 3.0.0, < 3.0.14
Affected: >= 2.2.0, <= 2.16.1
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CVE-2026-107210 (GCVE-0-2026-107210)

Vulnerability from cvelistv5 – Published: 2026-10-07 15:59 – Updated: 2026-10-07 15:59
VLAI
Title
ImageMagick: Policy Bypass in MAT decoder when reading highly compressed data
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-30 and 6.9.13-55, a crafted highly compressed MAT image can make the MAT decoder create temporary files larger than the configured security-policy limit, bypassing resource restrictions and consuming excessive disk space. This issue is fixed in versions 7.1.2-30 and 6.9.13-55.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: < 6.9.13-55
Affected: >= 7.0.0, < 7.1.2-30
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CVE-2026-106585 (GCVE-0-2026-106585)

Vulnerability from cvelistv5 – Published: 2026-10-06 20:52 – Updated: 2026-10-06 20:52
VLAI
Summary
In sshd and ssh in OpenSSH before 10.6, there is no check for whether the maximum packet length is exceeded during decompression of highly compressed data.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
OpenBSD OpenSSH Affected: 0 , < 10.6 (custom)
    cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
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CVE-2026-105747 (GCVE-0-2026-105747)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:32 – Updated: 2026-10-06 14:48
VLAI
Title
Docling: METS-GBS archive member limit enforced after full member enumeration (memory exhaustion during format detection)
Summary
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.131.0, METS-GBS format detection in docling/datamodel/document.py and the backend in docling/backend/mets_gbs_backend.py call tarfile.TarFile.getmembers() before enforcing the max_member_count limit, causing the full archive member list to be allocated before the limit can stop processing. A small gzip-compressed tar archive with a very large number of empty members can therefore consume memory proportional to the declared member count, including during format detection before the allowed_formats restriction is applied. This issue is a residual weakness in the member-count protection added for CVE-2026-44018. This issue is fixed in 2.131.0.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 14:34 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
docling-project docling Affected: >= 2.45.0, < 2.131.0
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docling-project docling-slim Affected: >= 2.45.0, < 2.131.0
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Show details on NVD website
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CVE-2026-103262 (GCVE-0-2026-103262)

Vulnerability from cvelistv5 – Published: 2026-10-01 10:42 – Updated: 2026-10-06 00:08
VLAI
Title
Tornado before 6.5.9 Denial of Service via CurlAsyncHTTPClient
Summary
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that accumulates in memory without size limits, causing the application process to be killed by out-of-memory conditions.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 00:08 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
tornadoweb tornado Affected: 0 , < 6.5.9 (semver)
Unaffected: 6.5.9 (semver)
    cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-14 00:00
Credits
iaohkut-from-NightWolf-Team aoto-tech
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CVE-2026-94637 (GCVE-0-2026-94637)

Vulnerability from cvelistv5 – Published: 2026-10-02 11:49 – Updated: 2026-10-05 16:24
VLAI
Title
Apache Thrift: Go `THeaderTransport` does not bound the inflated size of a ZLIB frame
Summary
Improper handling of highly compressed data (data amplification) vulnerability in Apache Thrift Go bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-05 16:23 UTC
CWE
  • CWE-409 - Improper handling of highly compressed data (data amplification)
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Thrift Affected: 0 , < 0.25.0 (semver)
Create a notification for this product.
Credits
Sylwester Lachiewicz
Show details on NVD website
To clipboard 

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CVE-2026-94636 (GCVE-0-2026-94636)

Vulnerability from cvelistv5 – Published: 2026-10-02 11:47 – Updated: 2026-10-02 17:32
VLAI
Title
Apache Thrift: Python `TZlibTransport` stops enforcing its decompressed-size limit once the limit is exactly used up
Summary
Improper handling of highly compressed data (data amplification), Function call with incorrectly specified arguments, Improper validation of specified quantity in input vulnerability in Apache Thrift py bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 17:32 UTC
CWE
  • CWE-409 - Improper handling of highly compressed data (data amplification)
  • CWE-628 - Function call with incorrectly specified arguments
  • CWE-1284 - Improper validation of specified quantity in input
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Thrift Affected: 0 , < 0.25.0 (semver)
Create a notification for this product.
Credits
Sylwester Lachiewicz
Show details on NVD website
To clipboard 

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CVE-2026-92573 (GCVE-0-2026-92573)

Vulnerability from cvelistv5 – Published: 2026-09-25 08:11 – Updated: 2026-09-25 13:13
VLAI
Title
Apache Qpid Broker-J: Uncontrolled resource consumption during AMQP delivery decompression, message conversion and HTTP management JSON rendering
Summary
Improper handling of compressed data in the shared GZIP decompressor used for AMQP 0-8/0-9/0-9-1 and AMQP 0-10 message delivery, message conversion and HTTP management JSON rendering allows authenticated message producers to exhaust memory and disrupt broker availability via processing without a decompressed-output limit. This issue affects Apache Qpid Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1.1, which fixes the issue.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 13:13 UTC
CWE
  • CWE-409 - Improper handling of highly compressed data (data amplification)
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Qpid Broker-J Affected: 0 , ≤ 10.1.0 (semver)
Create a notification for this product.
Credits
Khaled Suliman of AISLE Research n0mi1k
Show details on NVD website
To clipboard 

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CVE-2026-92000 (GCVE-0-2026-92000)

Vulnerability from cvelistv5 – Published: 2026-09-15 20:56 – Updated: 2026-09-24 14:22
VLAI
Title
adm-zip 0.5.14 through 0.6.0 Denial of Service via Zero Declared Uncompressed Size
Summary
adm-zip versions 0.5.14 through 0.6.0 fail to apply zlib decompression output limits when ZIP entries declare zero uncompressed size. Attackers can craft malicious ZIP archives with highly compressible entries declaring zero size to exhaust memory and cause denial of service.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 19:15 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
cthackers adm-zip Affected: 0.5.14 , < 0.6.1 (semver)
    cpe:2.3:a:adm-zip_project:adm-zip:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-11 00:00
Credits
Dilipkumar Choudhary
Show details on NVD website
To clipboard 

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CVE-2026-90555 (GCVE-0-2026-90555)

Vulnerability from cvelistv5 – Published: 2026-09-12 12:08 – Updated: 2026-09-14 16:00
VLAI
Title
vLLM before 0.28.0 Denial of Service via Audio Header
Summary
vLLM versions before 0.28.0 fail to validate audio sample rate headers in the transcription endpoint, allowing authenticated clients to bypass duration checks. Attackers can submit forged FLAC headers with inflated sample rates to trigger excessive memory allocation and crash the API server process affecting all tenants.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 16:00 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
References
Impacted products
Vendor Product Version
vllm-project vLLM Affected: 0 , < 0.28.0 (semver)
Unaffected: 0.28.0 (semver)
    cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-28 00:00
Credits
oran-s jperezdealgaba
Show details on NVD website
To clipboard 

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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