CVE-2026-86531 (GCVE-0-2026-86531)

Vulnerability from cvelistv5 – Published: 2026-11-10 15:37 – Updated: 2026-11-10 15:37
VLAI
Title
Apache TomEE: DoS via unbounded request body and multipart handling in embedded HTTP server
Summary
The embedded OpenEJB HTTP server does not limit the size of incoming request bodies or of multipart requests, and does not remove the temporary files it creates for multipart parts. A remote unauthenticated attacker can cause excessive memory or disk usage, leading to denial of service. Deployments using the Tomcat connectors are not affected. Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions.
Severity
No CVSS data available.
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
apache CNA
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache TomEE Affected: 4.0.0-beta-1 , ≤ 4.7.5 (semver)
Create a notification for this product.
Apache Software Foundation Apache TomEE Affected: 7.0.0-M1 , < 10.0.0-M1 (semver)
Affected: 10.0.0-M1 , ≤ 10.2.0 (semver)
Affected: 11.0.0-M1 (semver)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.openejb:openejb-http",
          "packageURL": "pkg:maven/org.apache.openejb/openejb-http",
          "product": "Apache TomEE",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "4.7.5",
              "status": "affected",
              "version": "4.0.0-beta-1",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.tomee:openejb-http",
          "packageURL": "pkg:maven/org.apache.tomee/openejb-http",
          "product": "Apache TomEE",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "10.0.0-M1",
              "status": "affected",
              "version": "7.0.0-M1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "10.2.0",
              "status": "affected",
              "version": "10.0.0-M1",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "11.0.0-M1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "The Apache Software Foundation"
        },
        {
          "lang": "en",
          "type": "tool",
          "value": "Claude Security"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Markus Jung"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The embedded OpenEJB HTTP server does not limit the size of incoming request bodies or of multipart requests, and does not remove the temporary files it creates for multipart parts. A remote unauthenticated attacker can cause excessive memory or disk usage, leading to denial of service. Deployments using the Tomcat connectors are not affected. Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions."
            }
          ],
          "value": "The embedded OpenEJB HTTP server does not limit the size of incoming request bodies or of multipart requests, and does not remove the temporary files it creates for multipart parts. A remote unauthenticated attacker can cause excessive memory or disk usage, leading to denial of service. Deployments using the Tomcat connectors are not affected. Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-10T15:37:39.782Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/cm1vdbx03ctl607nrrkdqyshwjscpd2y"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Apache TomEE: DoS via unbounded request body and multipart handling in embedded HTTP server",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-86531",
    "datePublished": "2026-11-10T15:37:39.782Z",
    "dateReserved": "2026-09-07T19:31:49.827Z",
    "dateUpdated": "2026-11-10T15:37:39.782Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.