Vulnerability-Lookup

GHSA-V95G-89M8-9P9R

Vulnerability from github – Published: 2026-06-01 06:30 – Updated: 2026-06-01 06:30

Details

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

Severity

5.7 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-48187"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-01T04:16:22Z",
    "severity": "MODERATE"
  },
  "details": "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",
  "id": "GHSA-v95g-89m8-9p9r",
  "modified": "2026-06-01T06:30:26Z",
  "published": "2026-06-01T06:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48187"
    },
    {
      "type": "WEB",
      "url": "https://otrs.com/release-notes/otrs-security-advisory-2026-06"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-48187 (GCVE-0-2026-48187)

Vulnerability from cvelistv5 – Published: 2026-06-01 03:33 – Updated: 2026-06-01 13:17

Title

Email with special content can lead to DoS

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

Severity

5.7 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

OTRS

References

1 reference

URL	Tags
https://otrs.com/release-notes/otrs-security-advi…

Impacted products

2 products

Vendor	Product	Version
OTRS AG	OTRS	Unknown: 7.0.x Affected: 8.0.x Affected: 2023.x Affected: 2024.x Affected: 2025.x Affected: 2026.x , ≤ 2026.3.x (patch)
OTRS AG	((OTRS)) Community Edition	Unknown: 6.x

Date Public

2026-06-01 07:00

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-48187",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T13:16:53.155447Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-01T13:17:04.742Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "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"
            }
          ]
        }
      ],
      "datePublic": "2026-06-01T07:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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.\u003cp\u003eThis issue affects OTRS:\u003c/p\u003e\u003cul\u003e\u003cli\u003e8.0.X\u003c/li\u003e\u003cli\u003e2023.X\u003c/li\u003e\u003cli\u003e2024.X\u003c/li\u003e\u003cli\u003e2025.X\u003c/li\u003e\u003cli\u003e2026.X before 2026.4.X\u003c/li\u003e\u003c/ul\u003ePlease note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected"
            }
          ],
          "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"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T03:33:23.990Z",
        "orgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8",
        "shortName": "OTRS"
      },
      "references": [
        {
          "url": "https://otrs.com/release-notes/otrs-security-advisory-2026-06/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches\u003cbr\u003e"
            }
          ],
          "value": "Update to OTRS 2026.4.1. or later. Please note that there will be no OTRS 7 patches"
        }
      ],
      "source": {
        "advisory": "OSA-2026-06",
        "defect": [
          "Ticket#2026052110000214",
          "Issue#3890"
        ],
        "discovery": "USER"
      },
      "title": "Email with special content can lead to DoS",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8",
    "assignerShortName": "OTRS",
    "cveId": "CVE-2026-48187",
    "datePublished": "2026-06-01T03:33:23.990Z",
    "dateReserved": "2026-05-21T07:53:13.253Z",
    "dateUpdated": "2026-06-01T13:17:04.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-V95G-89M8-9P9R

CVE-2026-48187 (GCVE-0-2026-48187)

Tags

Sightings

Nomenclature