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.

321 vulnerabilities reference this CWE, most recent first.

CVE-2026-115638 (GCVE-0-2026-115638)

Vulnerability from cvelistv5 – Published: 2026-10-23 03:21 – Updated: 2026-10-23 03:21
VLAI
Summary
OpenStack Ironic through 39.0.1 allows a denial of service via a configdrive that results in a very large amount of uncompressed data, aka a gzip bomb.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2338 records in the last 180 days details
References
Impacted products
Vendor Product Version
OpenStack Ironic Affected: 30.0.0 , ≤ 32.1.1 (semver)
Affected: 33.0.0 , ≤ 35.1.1 (semver)
Affected: 36.0.0 , ≤ 39.0.1 (semver)
    cpe:2.3:a:openstack:ironic:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:ironic:*:*:*:*:*:*:*:*
    cpe:2.3:a:openstack:ironic:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
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CVE-2026-115503 (GCVE-0-2026-115503)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:14 – Updated: 2026-10-22 19:14
VLAI
Title
Ghidra before 12.2 Denial of Service via Compressed Extension Archive
Summary
Ghidra before 12.2 contains an improper handling of highly compressed data vulnerability in ExtensionUtils.unzipToInstallationFolder() that allows attackers to exhaust disk space. Attackers can persuade users to install a crafted zip bomb extension archive that expands without size limits, causing later writes by Ghidra and other applications to fail.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
NationalSecurityAgency ghidra Affected: 0 , < 12.2 (custom)
    cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
Yuvraj Saxena (0xXA)
Show details on NVD website
To clipboard 

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CVE-2026-115396 (GCVE-0-2026-115396)

Vulnerability from cvelistv5 – Published: 2026-10-22 19:14 – Updated: 2026-10-22 19:14
VLAI
Title
Ghidra 10.3 before 12.2 Denial of Service via Compressed Theme Archive
Summary
Ghidra 10.3 before 12.2 contains an improper handling of highly compressed data vulnerability in ThemeReader.processIconFile() that fails to limit decompressed size or compression ratio. Attackers can persuade a user to import a crafted theme ZIP whose icon entries expand to fill the host filesystem, causing later writes to fail.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
NationalSecurityAgency ghidra Affected: 10.3 , < 12.2 (custom)
    cpe:2.3:a:nsa:ghidra:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
Yuvraj Saxena (0xXA)
Show details on NVD website
To clipboard 

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CVE-2026-114136 (GCVE-0-2026-114136)

Vulnerability from cvelistv5 – Published: 2026-10-21 20:02 – Updated: 2026-10-21 20:02
VLAI
Title
Django REST framework: JSONParser applies an attacker-named codec to the request stream
Summary
Django REST framework is a toolkit for building Web APIs. From 3.6.4 until 3.18.2, JSONParser.parse in rest_framework/parsers.py uses the client-supplied Content-Type charset value with codecs.getreader, which accepts byte-transform codecs such as bz2_codec rather than only text encodings. A remote unauthenticated client can therefore cause a compressed JSON request body to be expanded after Django has enforced DATA_UPLOAD_MAX_MEMORY_SIZE against only the wire bytes, allowing a very small request to consume substantial per-worker memory. The default parser set is sufficient, and any reachable endpoint that accepts a JSON body is affected. This issue is fixed in version 3.18.2.
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-409 - Improper Handling of Highly Compressed Data (Data Amplification)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
encode django-rest-framework Affected: >= 3.6.4, < 3.18.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-113873 (GCVE-0-2026-113873)

Vulnerability from cvelistv5 – Published: 2026-10-22 17:57 – Updated: 2026-10-23 18:16
VLAI
Title
SmileCDR HAPI FHIR improper data decompression
Summary
SmileCDR HAPI FHIR does not properly handle highly compressed data, allowing an unauthenticated attacker to send compressed payloads that exhaust server heap or crash certain services when decompressed.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · cisa-cg (v2.0.3)
Decision recorded 2026-10-06 16:13 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
cisa-cg CNA under the CISA root
CNA scorecard B 76/100 over 132 records in the last 180 days details
References
Impacted products
Vendor Product Version
SmileCDR HAPI FHIR Affected: 0 , < * (custom)
Create a notification for this product.
Date Public
2026-10-22 00:00
Credits
Abhinav Agarwal
Show details on NVD website
To clipboard 

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CVE-2026-112892 (GCVE-0-2026-112892)

Vulnerability from cvelistv5 – Published: 2026-10-19 21:35 – Updated: 2026-10-22 21:11
VLAI
Title
Pillow: MSP RLE decoder expands a tiny file into unbounded memory
Summary
Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0.
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 21:11 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
python-pillow Pillow Affected: >= 4.1.0, < 13.0.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-111924 (GCVE-0-2026-111924)

Vulnerability from cvelistv5 – Published: 2026-10-17 18:46 – Updated: 2026-10-19 21:35
VLAI
Title
Fleet before 4.83.0 Denial of Service via Unbounded Gzip Decompression
Summary
Fleet before 4.83.0 contains a denial of service vulnerability that allows unauthenticated attackers to exhaust server memory by sending gzip-compressed request bodies. Attackers can send small, highly compressed requests with Content-Encoding: gzip to unauthenticated endpoints that expand during decoding, crashing the entire Fleet instance.
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 2026-10-19 21:35 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
fleetdm fleet Affected: 0 , < 4.83.0 (semver)
Unaffected: 4.83.0 (semver)
    cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-02 00:00
Credits
fuzzztf
Show details on NVD website
To clipboard 

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CVE-2026-109398 (GCVE-0-2026-109398)

Vulnerability from cvelistv5 – Published: 2026-10-12 15:16 – Updated: 2026-10-13 18:20
VLAI
Title
Gumlet php-image-resize before 3.0.1 Denial of Service via Decompression Bombs
Summary
Gumlet php-image-resize before 3.0.1 contains a denial of service vulnerability because the ImageResize constructor in lib/ImageResize.php passes images to GD imagecreatefrom* functions without pixel limits. Remote attackers can upload small, highly compressed images that decode to large bitmaps, exhausting PHP memory and terminating the worker process.
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 2026-10-13 18:20 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
gumlet php-image-resize Affected: 0 , < 3.0.1 (semver)
Create a notification for this product.
Date Public
2026-10-06 18:18
Credits
ikram-4
Show details on NVD website
To clipboard 

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CVE-2026-109324 (GCVE-0-2026-109324)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-13 16:54
VLAI
Title
Grav before 2.1.7 Memory Exhaustion via Oversized Image Transforms
Summary
Grav before 2.1.7 contains a denial of service vulnerability that allows authenticated media authors to exhaust memory by uploading compressed oversized raster images. Attackers can reference a Twig or Markdown transform so GD or Imagick decodes the full source without dimension checks, letting anonymous requests repeatedly cause page unavailability.
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 2026-10-13 15:48 UTC
CWE
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
getgrav grav Affected: 0 , < 2.1.7 (semver)
Unaffected: 2.1.7 (semver)
    cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-23 00:00
Credits
manus-pi manus-use
Show details on NVD website
To clipboard 

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CVE-2026-109294 (GCVE-0-2026-109294)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:04 – Updated: 2026-10-23 21:57
VLAI
Title
Open WebUI 0.6.42 before 0.11.4 Memory Exhaustion via Compressed Remote Image
Summary
Open WebUI from 0.6.42 before 0.11.4 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory by supplying compressed remote image URLs in chat messages. Attackers can point the image field at a host returning gzip-encoded responses, which get_image_base64_from_url decompresses unbounded, causing denial of service for all users.
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 2026-10-13 15:49 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6748 records in the last 180 days details
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: 0.6.42 , < 0.11.4 (semver)
Unaffected: 0.11.4 (semver)
    cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-27 00:00
Credits
y4rvin Classic298
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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