{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-48187","assignerOrgId":"2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8","state":"PUBLISHED","assignerShortName":"OTRS","dateReserved":"2026-05-21T07:53:13.253Z","datePublished":"2026-06-01T03:33:23.990Z","dateUpdated":"2026-06-01T13:17:04.742Z"},"containers":{"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.<p>This issue affects OTRS:</p><ul><li>8.0.X</li><li>2023.X</li><li>2024.X</li><li>2025.X</li><li>2026.X before 2026.4.X</li></ul>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"}],"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":{"orgId":"2e1bf29f-dc29-4ed8-830c-7b9348b6f0e8","shortName":"OTRS","dateUpdated":"2026-06-01T03:33:23.990Z"},"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<br>"}],"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"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-01T13:16:53.155447Z","id":"CVE-2026-48187","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-06-01T13:17:04.742Z"}}]}}