FKIE_CVE-2026-48187

Vulnerability from fkie_nvd - Published: 2026-06-01 04:16 - Updated: 2026-07-22 07:10
Severity
5.7 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Summary
An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS: * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X Please note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected
References
security@otrs.comhttps://otrs.com/release-notes/otrs-security-advisory-2026-06/Vendor Advisory
Impacted products
Vendor Product Version
otrs otrs *
otrs otrs *
otrs otrs *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "Mail Backend"
          ],
          "product": "OTRS",
          "vendor": "OTRS AG",
          "versions": [
            {
              "status": "unknown",
              "version": "7.0.x"
            },
            {
              "status": "affected",
              "version": "8.0.x"
            },
            {
              "status": "affected",
              "version": "2023.x"
            },
            {
              "status": "affected",
              "version": "2024.x"
            },
            {
              "status": "affected",
              "version": "2025.x"
            },
            {
              "lessThanOrEqual": "2026.3.x",
              "status": "affected",
              "version": "2026.x",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "((OTRS)) Community Edition",
          "vendor": "OTRS AG",
          "versions": [
            {
              "status": "unknown",
              "version": "6.x"
            }
          ]
        }
      ],
      "source": "security@otrs.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "5421FAF4-D702-4429-A186-6374A4306293",
              "versionEndIncluding": "6.0.32",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "650E99BF-9E05-496F-BD59-5542A95FD221",
              "versionEndIncluding": "8.0.37",
              "versionStartIncluding": "7.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "476B2F02-24EA-43BB-BEA8-282D7D71B386",
              "versionEndExcluding": "2026.4.1",
              "versionStartIncluding": "2023.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS:\n\n  *  8.0.X\n  *  2023.X\n  *  2024.X\n  *  2025.X\n  *  2026.X before 2026.4.X\n\nPlease note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected"
    },
    {
      "lang": "es",
      "value": "Una asignaci\u00f3n incontrolada de recursos sin l\u00edmites ni limitaci\u00f3n en el manejo de correo electr\u00f3nico en OTRS permite una asignaci\u00f3n excesiva que puede llevar al aborto del servidor web. Este problema afecta a OTRS:\n\n  *  8.0.X\n  *  2023.X\n  *  2024.X\n  *  2025.X\n  *  2026.X antes de 2026.4.X\n\nTenga en cuenta que ((OTRS)) Community Edition 6.x, OTRS 7.x y los productos basados en la ((OTRS)) Community Edition tambi\u00e9n es muy probable que se vean afectados."
    }
  ],
  "id": "CVE-2026-48187",
  "lastModified": "2026-07-22T07:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 3.6,
        "source": "security@otrs.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48187",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-01T13:16:53.155447Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-01T04:16:22.410",
  "references": [
    {
      "source": "security@otrs.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2026-06/"
    }
  ],
  "sourceIdentifier": "security@otrs.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security@otrs.com",
      "type": "Secondary"
    }
  ]
}



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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

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.