CVE-2026-48824

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 20, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github.
github Patch Available🟡 PoC Available

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) · Advisory · axllent/mailpit · GitHub

https://github.com/axllent/mailpit/security/advisories/GHSA-28pq-6qxg-wg5r
github_release Patch Available

Release v1.30.1 (axllent/mailpit)

Patch available: axllent/mailpit v1.30.1

https://github.com/axllent/mailpit/releases/tag/v1.30.1

Vendor Advisories for CVE-2026-48824(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/axllent/mailpit—1.30.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-07 16:01 UTCEPSS rescore
  5. 2026-09-06 13:47 UTCEPSS rescore
  6. 2026-09-06 00:44 UTCEG score recompute
  7. 2026-09-04 05:06 UTCEPSS rescore
  8. 2026-09-02 14:12 UTCEPSS rescore
  9. 2026-09-01 13:54 UTCEPSS rescore
  10. 2026-09-01 04:40 UTCEPSS rescore
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 11:43 UTCEG score recompute
  13. 2026-08-30 01:22 UTCEPSS rescore
  14. 2026-08-28 21:41 UTCEPSS rescore
  15. 2026-08-27 22:24 UTCEG score recompute
  16. 2026-08-27 14:25 UTCEPSS rescore
  17. 2026-08-26 14:46 UTCEPSS rescore
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-25 06:47 UTCEG score recompute
  20. 2026-08-23 06:52 UTCEG score recompute
  21. 2026-08-23 00:19 UTCEPSS rescore
  22. 2026-08-22 06:55 UTCEG score recompute
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-21 04:31 UTCEG score recompute
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 47 more
  1. 2026-08-20 04:36 UTCEG score recompute
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-18 23:21 UTCEG score recompute
  4. 2026-08-18 13:48 UTCEPSS rescore
  5. 2026-08-17 23:18 UTCEG score recompute
  6. 2026-08-17 13:47 UTCEPSS rescore
  7. 2026-08-16 17:24 UTCEG score recompute
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 17:22 UTCEG score recompute
  11. 2026-08-15 01:30 UTCEPSS rescore
  12. 2026-08-14 17:27 UTCEG score recompute
  13. 2026-08-13 22:00 UTCEPSS rescore
  14. 2026-08-12 16:51 UTCEG score recompute
  15. 2026-08-12 13:51 UTCEPSS rescore
  16. 2026-08-11 16:56 UTCEG score recompute
  17. 2026-08-11 00:00 UTCEPSS rescore
  18. 2026-08-09 16:31 UTCEG score recompute
  19. 2026-08-09 13:46 UTCEPSS rescore
  20. 2026-08-08 16:37 UTCEPSS rescore
  21. 2026-08-07 16:40 UTCEG score recompute
  22. 2026-08-06 16:45 UTCEG score recompute
  23. 2026-08-06 13:47 UTCEPSS rescore
  24. 2026-08-05 19:17 UTCEPSS rescore
  25. 2026-08-04 16:54 UTCEG score recompute
  26. 2026-08-04 15:10 UTCEPSS rescore
  27. 2026-08-04 10:39 UTCEPSS rescore
  28. 2026-08-02 17:03 UTCEG score recompute
  29. 2026-08-02 02:27 UTCEPSS rescore
  30. 2026-08-01 17:08 UTCEG score recompute
  31. 2026-08-01 04:16 UTCEPSS rescore
  32. 2026-07-30 17:18 UTCEG score recompute
  33. 2026-07-30 16:28 UTCEPSS rescore
  34. 2026-07-30 01:30 UTCEPSS rescore
  35. 2026-07-28 16:38 UTCEG score recompute
  36. 2026-07-28 15:37 UTCEPSS rescore
  37. 2026-07-28 13:53 UTCEG score recompute
  38. 2026-07-27 13:08 UTCEG score recompute
  39. 2026-07-26 14:54 UTCEPSS rescore
  40. 2026-07-26 13:13 UTCEG score recompute
  41. 2026-07-25 14:18 UTCEPSS rescore
  42. 2026-07-24 14:18 UTCEPSS rescore
  43. 2026-07-23 14:18 UTCEPSS rescore
  44. 2026-07-23 03:18 UTCEG score recompute
  45. 2026-07-22 14:08 UTCEPSS rescore
  46. 2026-07-21 15:25 UTCEPSS rescore
  47. 2026-07-01 21:02 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48824?
CVE-2026-48824 is a medium vulnerability published on July 1, 2026. 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…
When was CVE-2026-48824 disclosed?
CVE-2026-48824 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48824 actively exploited?
CVE-2026-48824 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.5% of all scored CVEs.
What is the CVSS score of CVE-2026-48824?
CVE-2026-48824 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-48824?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48824, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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