Vulnerability-Lookup

GHSA-F77W-PX59-CQF5

Vulnerability from github – Published: 2026-06-30 12:31 – Updated: 2026-06-30 15:30

Details

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker.

An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7.

Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2026-53917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-789"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-30T11:16:30Z",
    "severity": "HIGH"
  },
  "details": "Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker.\n\nAn authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation\u00a0which can trigger OOM and crash the broker.\nThis issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7.\n\nUsers are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.",
  "id": "GHSA-f77w-px59-cqf5",
  "modified": "2026-06-30T15:30:44Z",
  "published": "2026-06-30T12:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53917"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/grrd1mwgkgblqjbwkkq6dvmdxd9ov2dx"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/29/14"
    }
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  "severity": [
    {
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      "type": "CVSS_V3"
    }
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}

CVE-2026-53917 (GCVE-0-2026-53917)

Vulnerability from cvelistv5 – Published: 2026-06-30 09:49 – Updated: 2026-06-30 14:51

Title

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker: Unbounded memory allocation in OpenWire property unmarshalling

Summary

Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Severity

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 (v2.0.3)

CWE

CWE-789 - Memory Allocation with Excessive Size Value

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/grrd1mwgkgblqjbwk…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

4 products

Vendor	Product	Version
Apache Software Foundation	Apache ActiveMQ	Affected: 0 , < 5.19.8 (semver) Affected: 6.0.0 , < 6.2.7 (semver)
Apache Software Foundation	Apache ActiveMQ All	Affected: 0 , < 5.19.8 (semver) Affected: 6.0.0 , < 6.2.7 (semver)
Apache Software Foundation	Apache ActiveMQ Client	Affected: 0 , < 5.19.8 (semver) Affected: 6.0.0 , < 6.2.7 (semver)
Apache Software Foundation	Apache ActiveMQ Broker	Affected: 0 , < 5.19.8 (semver) Affected: 6.0.0 , < 6.2.7 (semver)

Credits

tonghuaroot

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-F77W-PX59-CQF5

CVE-2026-53917 (GCVE-0-2026-53917)

Tags

Sightings

Nomenclature