{"id":"EUVD-2026-63659","revision":"a534c05baed94c6fafb7d26081b7c422","records":[{"revision":"a534c05baed94c6fafb7d26081b7c422","observedAt":"2026-10-30T10:59:39.873+00:00","statement":{"source":"euvd","id":"EUVD-2026-63659","aliases":["CVE-2026-67446","GHSA-75mr-qw9x-3r39"],"title":"Mailpit is an email testing tool and API for developers. Prior to 1.30.4, Mailpit decodes attacker-supplied image attachments into a full raster before checking decoded dimensions, pixel count, or memory use in the GET /api/v1/message/{id}/…","description":"Mailpit is an email testing tool and API for developers. Prior to 1.30.4, Mailpit decodes attacker-supplied image attachments into a full raster before checking decoded dimensions, pixel count, or memory use in the GET /api/v1/message/{id}/part/{partID}/thumb endpoint. The Thumbnail handler in server/apiv1/thumbnails.go obtains attachment bytes through storage.GetAttachmentPart(), accepts image/* content, and calls imaging.Decode() with AutoOrientation before imaging.Fill() scales the image to 180 by 120 pixels. A compact image declaring very large dimensions can therefore consume disproportionately large memory and CPU, and opening the message UI can trigger the same endpoint through server/ui-src/components/message/MessageAttachments.vue. This can degrade availability when an unauthenticated client can store the crafted attachment and reach the web API. This issue is fixed in version 1.30.4.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":null}],"references":["https://github.com/axllent/mailpit/security/advisories/GHSA-75mr-qw9x-3r39","https://github.com/axllent/mailpit/commit/6bcb6337838b542d53c348e38c7977f569b6db35","https://github.com/axllent/mailpit/releases/tag/v1.30.4"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-63659","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 20, 2026, 9:10:28 PM","dateUpdated":"Aug 21, 2026, 2:56:09 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-63659","identifiers":["EUVD-2026-63659","CVE-2026-67446","GHSA-75mr-qw9x-3r39"]},"retained":false,"historicalAffected":[]}],"coverage":[]}