{"id":"CVE-2026-48824","revision":"4187d52898854139ab431d400010df2e","records":[{"revision":"4187d52898854139ab431d400010df2e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-48824","aliases":[],"title":"Mailpit: Sibling-endpoint memory-exhaustion DoS via unbounded JSON body on /api/v1/messages, /api/v1/tags, and /api/v1/message/{id}/release (incomplete fix of GHSA-fpxj-m5q8-fphw)","description":"Mailpit is an email testing tool and API for developers. Prior to version 1.30.1, the fix for GHSA-fpxj-m5q8-fphw (CVE-2026-45710, \"Mailpit: Set a default 50MB p/m limit to prevent DoS via unlimited SMTP DATA and /api/v1/send body sizes\") wrapped only `POST /api/v1/send` with `http.MaxBytesReader`. The four other Mailpit JSON-body API endpoints  `PUT /api/v1/messages` (SetReadStatus), `DELETE /api/v1/messages` (DeleteMessages), `PUT /api/v1/tags` (SetMessageTags), and `POST /api/v1/message/{id}/release` (ReleaseMessage)  still call `json.NewDecoder(r.Body)` directly with no body-size cap and remain reachable unauthenticated in the default `docker run axllent/mailpit:latest` deploy. An unauthenticated remote attacker can post a multi-million-element `IDs` slice and drive RSS from ~25 MiB baseline to ~450 MiB per 16 MB request body. Repeating across multiple connections accumulates the same per-request amplification per process. Version 1.30.1 contains a patch.","state":0,"publishedAt":"2026-07-20T15:02:52.107+00:00","modifiedAt":"2026-07-20T19:07:58.952+00:00","affected":[{"ecosystem":"Vendor product","name":"mailpit","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"axllent\",\n                    \"product\": \"mailpit\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.30.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"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":"MEDIUM"}],"references":["https://github.com/axllent/mailpit/security/advisories/GHSA-28pq-6qxg-wg5r","https://github.com/axllent/mailpit/releases/tag/v1.30.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-48824","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-48824","identifiers":["CVE-2026-48824"]},"retained":false,"historicalAffected":[]}],"coverage":[]}