CVE-2026-87755 (GCVE-0-2026-87755)

Vulnerability from cvelistv5 – Published: 2026-11-10 14:56 – Updated: 2026-11-10 14:56
VLAI
Title
Apache TomEE: Stateful session bean hijacking via predictable session identifiers
Summary
Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients' sessions and invoke methods on their beans, exposing or modifying other users' session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.
Severity
No CVSS data available.
CWE
  • CWE-340 - Generation of Predictable Numbers or Identifiers
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 , < 10.3.0 (semver)
Affected: 11.0.0-M1 , < 11.0.0-M2 (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-core",
          "packageURL": "pkg:maven/org.apache.openejb/openejb-core",
          "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-core",
          "packageURL": "pkg:maven/org.apache.tomee/openejb-core",
          "product": "Apache TomEE",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "10.0.0-M1",
              "status": "affected",
              "version": "7.0.0-M1",
              "versionType": "semver"
            },
            {
              "lessThan": "10.3.0",
              "status": "affected",
              "version": "10.0.0-M1",
              "versionType": "semver"
            },
            {
              "lessThan": "11.0.0-M2",
              "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": "Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients\u0027 sessions and invoke methods on their beans, exposing or modifying other users\u0027 session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue."
            }
          ],
          "value": "Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients\u0027 sessions and invoke methods on their beans, exposing or modifying other users\u0027 session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-340",
              "description": "CWE-340 Generation of Predictable Numbers or Identifiers",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-10T14:56:29.818Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread.html/srzp26oyjtb3bwgxwsyhpphv778s17m8"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "Apache TomEE: Stateful session bean hijacking via predictable session identifiers",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-87755",
    "datePublished": "2026-11-10T14:56:29.818Z",
    "dateReserved": "2026-09-09T07:01:32.622Z",
    "dateUpdated": "2026-11-10T14:56:29.818Z",
    "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.