CVE-2026-48824
- Source
- https://cve.org/CVERecord?id=CVE-2026-48824
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48824.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-48824
- Aliases
- Downstream
- Related
- Published
- 2026-07-20T15:02:52.107Z
- Modified
- 2026-07-31T18:30:53.193616231Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- 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)
- Details
-
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/sendwithhttp.MaxBytesReader. The four other Mailpit JSON-body API endpointsPUT /api/v1/messages(SetReadStatus),DELETE /api/v1/messages(DeleteMessages),PUT /api/v1/tags(SetMessageTags), andPOST /api/v1/message/{id}/release(ReleaseMessage) still calljson.NewDecoder(r.Body)directly with no body-size cap and remain reachable unauthenticated in the defaultdocker run axllent/mailpit:latestdeploy. An unauthenticated remote attacker can post a multi-million-elementIDsslice 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. - Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48824.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-770" ] }- References
Affected packages
Git / github.com/axllent/mailpit
Affected ranges
- Type
- GIT
- Repo
- https://github.com/axllent/mailpit
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
{ "cpe": "cpe:2.3:a:axllent:mailpit:*:*:*:*:*:*:*:*", "source": [ "AFFECTED_FIELD", "CPE_RANGE", "REFERENCES" ], "extracted_events": [ { "introduced": "0" }, { "fixed": "1.30.1" } ] }