Vulnerability-Lookup

GHSA-79VH-374G-G44H

Vulnerability from github – Published: 2026-11-05 12:32 – Updated: 2026-11-05 12:32

Details

Allocation of Resources Without Limits or Throttling vulnerability in Apache Juneau.

The MessagePack parser, which the REST server enables by default, sizes buffers from length values in the input. An unauthenticated client can send a few bytes that force a multi-gigabyte allocation and an OutOfMemoryError, causing denial of service. Related unbounded allocations in REST request handling (multipart uploads and request reader buffers) are fixed at the same time.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue.

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

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  "affected": [],
  "aliases": [
    "CVE-2026-73095"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
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    "nvd_published_at": "2026-11-05T12:17:50Z",
    "severity": "HIGH"
  },
  "details": "Allocation of Resources Without Limits or Throttling vulnerability in Apache Juneau.\n\nThe MessagePack parser, which the REST server enables by default, sizes buffers from length values in the input. An unauthenticated client can send a few bytes that force a multi-gigabyte allocation and an OutOfMemoryError, causing denial of service. Related unbounded allocations in REST request handling (multipart uploads and request reader buffers) are fixed at the same time.\n\nThis issue affects Apache Juneau: through 9.2.0.\n\nUsers are recommended to upgrade to version 9.2.1, which fixes the issue.",
  "id": "GHSA-79vh-374g-g44h",
  "modified": "2026-11-05T12:32:14Z",
  "published": "2026-11-05T12:32:14Z",
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    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73095"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6"
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      "type": "CVSS_V4"
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}

CVE-2026-73095 (GCVE-0-2026-73095)

Vulnerability from cvelistv5 – Published: 2026-11-05 11:48 – Updated: 2026-11-05 19:04

Title

Apache Juneau: Denial of service via unbounded memory allocation in parsers and REST request handling

Summary

Allocation of Resources Without Limits or Throttling vulnerability in Apache Juneau. The MessagePack parser, which the REST server enables by default, sizes buffers from length values in the input. An unauthenticated client can send a few bytes that force a multi-gigabyte allocation and an OutOfMemoryError, causing denial of service. Related unbounded allocations in REST request handling (multipart uploads and request reader buffers) are fixed at the same time. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue.

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: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-11-05 16:57 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1178 records in the last 180 days details

References

1 reference

URL	Tags
https://lists.apache.org/thread.html/j05q7vw08j48…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Juneau	Affected: 0 , < 9.2.1 (semver)

Credits

n0mi1k

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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