Vulnerability-Lookup

FKIE_CVE-2026-92230

Vulnerability from fkie_nvd - Published: 2026-09-17 19:17 - Updated: 2026-09-17 20:18

Severity

Summary

Apache Karaf's XmlUtils cached XML parser/transformer factories in static ThreadLocal fields on long-lived container threads. Because a ThreadLocal value outlives the OSGi bundle that created it, repeated bundle or feature install, update, or refresh operations can leave successive bundle ClassLoader's pinned in memory and unreachable for garbage collection, leading to unbounded Metaspace growth and eventual denial of service of the Karaf instance.

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdj
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/09/17/3

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache Karaf",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.4.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apache Karaf\u0027s XmlUtils cached XML parser/transformer factories in static ThreadLocal fields on long-lived container threads. Because a ThreadLocal value outlives the OSGi bundle that created it, repeated bundle or feature install, update, or refresh operations can leave successive bundle ClassLoader\u0027s pinned in memory and unreachable for garbage collection, leading to unbounded Metaspace growth and eventual denial of service of the Karaf instance."
    }
  ],
  "id": "CVE-2026-92230",
  "lastModified": "2026-09-17T20:18:55.523",
  "metrics": {},
  "published": "2026-09-17T19:17:06.897",
  "references": [
    {
      "source": "security@apache.org",
      "url": "https://lists.apache.org/thread/pxgqjvsmzgpvgly1qf1w300qxsp8bxdj"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/09/17/3"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        },
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}

CVE-2026-92230 (GCVE-0-2026-92230)

Vulnerability from cvelistv5 – Published: 2026-09-17 18:38 – Updated: 2026-09-17 19:11

Title

Apache Karaf: Improper release of ClassLoader references via static ThreadLocal caching

Summary

Severity

No CVSS data available.

CWE

CWE-401 - Missing release of memory after effective lifetime
CWE-772 - Missing release of resource after effective lifetime

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread/pxgqjvsmzgpvgly1q…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/17/3

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Karaf	Affected: 0 , < 4.4.11 (semver)

Credits

Baoquan Cui & Yucheng Qiu

Show details on NVD website

JSON

To clipboard

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          }
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            "content": {
              "text": "moderate"
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            "type": "Textual description of severity"
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      "source": {
        "advisory": "https://karaf.apache.org/security/cve-2026-92230.txt",
        "defect": [
          "https://github.com/apache/karaf/issues/2278"
        ],
        "discovery": "EXTERNAL"
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      "title": "Apache Karaf: Improper release of ClassLoader references via static ThreadLocal caching",
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    "state": "PUBLISHED"
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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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.