CVE-2026-4410 (GCVE-0-2026-4410)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:54 – Updated: 2026-05-27 15:25
VLAI
Title
IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service
Summary
IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
Severity
4.8 (Medium)
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 15:24 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7273424 vendor-advisorypatch
Impacted products
Vendor Product Version CPE status
IBM WebSphere Application Server - Liberty Affected: 19.0.0.7 , ≤ 26.0.0.5 (semver)
    cpe:2.3:a:ibm:websphere_application_server___liberty:19.0.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server___liberty:26.0.0.5:*:*:*:*:*:*:*
Create a notification for this product.
IBM WebSphere Application Server Affected: 9.0
Affected: 8.5
    cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
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                  "value": "\u003cp\u003eIBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH70807 and APAR PH70616. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to \u003ca href=\"https://www.ibm.com/support/pages/node/6553910\" rel=\"nofollow\"\u003eHow to determine if Liberty is using a specific feature\u003c/a\u003e.\u0026nbsp;\u003c/p\u003e\u003cdiv\u003e\u003cp\u003e\u003cstrong\u003eFor IBM WebSphere Application Server Liberty 19.0.0.7 - 26.0.0.5 using the sipServlet-1.1 feature:\u003c/strong\u003e\u003c/p\u003e\u003cp\u003e\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves \u003ca href=\"https://www.ibm.com/support/pages/node/7273237\" rel=\"nofollow\"\u003ePH70807\u003c/a\u003e\u003cbr\u003e--OR--\u003cbr\u003e\u00b7 Apply Fix Pack 26.0.0.6 or later (targeted availability 2Q2026).\u003c/p\u003e\u003c/div\u003e\u003cp\u003e\u003cstrong\u003eFor IBM WebSphere Application Server traditional:\u003c/strong\u003e\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eFor V9.0.0.0 through 9.0.5.27:\u003c/strong\u003e\u003cbr\u003e\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves \u003ca href=\"https://www.ibm.com/support/pages/node/7269402\" rel=\"nofollow\"\u003ePH70616\u003c/a\u003e\u003cbr\u003e--OR--\u003cbr\u003e\u00b7 Apply Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eFor V8.5.0.0 through 8.5.5.29:\u003c/strong\u003e\u003cbr\u003e\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves \u003ca href=\"https://www.ibm.com/support/pages/node/7269402\" rel=\"nofollow\"\u003ePH70616\u003c/a\u003e\u003cbr\u003e--OR--\u003cbr\u003e\u00b7 Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eAdditional interim fixes may be available and linked off the interim fix download page.\u003c/p\u003e"
                }
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              "value": "IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the fix for APAR PH70807 and APAR PH70616. To determine if a feature is enabled for WebSphere Application Server Liberty, refer to  How to determine if Liberty is using a specific feature https://www.ibm.com/support/pages/node/6553910 .\u00a0\n\n\n\nFor IBM WebSphere Application Server Liberty 19.0.0.7 - 26.0.0.5 using the sipServlet-1.1 feature:\n\n\n\n\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves  PH70807 https://www.ibm.com/support/pages/node/7273237 \n--OR--\n\u00b7 Apply Fix Pack 26.0.0.6 or later (targeted availability 2Q2026).\n\n\n\n\n\nFor IBM WebSphere Application Server traditional:\n\n\n\nFor V9.0.0.0 through 9.0.5.27:\n\u00b7 Upgrade to minimal fix pack levels as required by the interim fix and then apply the Interim Fix that resolves  PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n\u00b7 Apply Fix Pack 9.0.5.28 or later (targeted availability 2Q2026).\u00a0\u00a0\n\n\n\nFor V8.5.0.0 through 8.5.5.29:\n\u00b7 Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix that resolves  PH70616 https://www.ibm.com/support/pages/node/7269402 \n--OR--\n\u00b7 Apply Fix Pack 8.5.5.30 or later (targeted availability 3Q2026).\n\n\n\n\n\n\n\nAdditional interim fixes may be available and linked off the interim fix download page."
            }
          ],
          "title": "IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service",
          "x_generator": {
            "engine": "ibm-cvegen"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "assignerShortName": "ibm",
        "cveId": "CVE-2026-4410",
        "datePublished": "2026-05-27T12:54:48.488Z",
        "dateReserved": "2026-03-19T02:14:15.887Z",
        "dateUpdated": "2026-05-27T15:25:09.833Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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

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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.



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.