CVE-2026-5038

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 80% 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, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe() call does not propagate the stream destroy signal to the underlying fs.WriteStream. An attacker can exhaust disk space by triggering many aborted uploads, with no application bug required.

Patches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease). Both versions track in-flight write streams and clean them up on the abort path.

Workarounds: None.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 16, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: github.
github Patch Available

Multer vulnerable to Denial of Service via incomplete cleanup of aborted uploads · Advisory · expressjs/multer · GitHub

https://github.com/expressjs/multer/security/advisories/GHSA-3p4h-7m6x-2hcm
generic

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html

Vendor Advisories for CVE-2026-5038(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhdh/rhdh-hub-rhel9:17859728432026-08-10redhat
redhatrhdh/rhdh-hub-rhel9:17854116522026-08-03redhat
redhatrhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend:17853328252026-07-29redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
multer—3.0.0-alpha.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× in last 7d / 94× 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.

Showing the most recent 100 of 151 total refreshes for this CVE.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 21:31 UTCVendor advisory
  3. 2026-08-20 08:41 UTCEG score recompute
  4. 2026-08-20 08:41 UTCVendor advisory
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 13:15 UTCEG score recompute
  7. 2026-08-19 13:15 UTCVendor advisory
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 15:51 UTCEG score recompute
  10. 2026-08-17 15:51 UTCVendor advisory
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 03:02 UTCEG score recompute
  13. 2026-08-17 03:02 UTCVendor advisory
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:12 UTCEG score recompute
  16. 2026-08-16 14:12 UTCVendor advisory
  17. 2026-08-16 01:23 UTCVendor advisory
  18. 2026-08-15 12:33 UTCEG score recompute
  19. 2026-08-15 12:33 UTCVendor advisory
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 23:43 UTCVendor advisory
  22. 2026-08-14 10:54 UTCVendor advisory
  23. 2026-08-13 22:04 UTCEG score recompute
  24. 2026-08-13 22:04 UTCVendor advisory
  25. 2026-08-13 22:00 UTCEPSS rescore
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  1. 2026-08-13 08:23 UTCVendor advisory
  2. 2026-08-12 19:34 UTCEG score recompute
  3. 2026-08-12 19:34 UTCVendor advisory
  4. 2026-08-12 13:51 UTCEPSS rescore
  5. 2026-08-12 06:44 UTCVendor advisory
  6. 2026-08-11 16:51 UTCEG score recompute
  7. 2026-08-11 16:51 UTCVendor advisory
  8. 2026-08-11 04:01 UTCEG score recompute
  9. 2026-08-11 04:01 UTCVendor advisory
  10. 2026-08-11 00:00 UTCEPSS rescore
  11. 2026-08-10 15:12 UTCVendor advisory
  12. 2026-08-10 02:22 UTCEG score recompute
  13. 2026-08-10 02:22 UTCVendor advisory
  14. 2026-08-09 13:46 UTCEPSS rescore
  15. 2026-08-09 13:33 UTCVendor advisory
  16. 2026-08-09 00:44 UTCEG score recompute
  17. 2026-08-09 00:44 UTCVendor advisory
  18. 2026-08-08 16:37 UTCEPSS rescore
  19. 2026-08-08 11:54 UTCVendor advisory
  20. 2026-08-07 23:05 UTCEG score recompute
  21. 2026-08-07 23:05 UTCVendor advisory
  22. 2026-08-07 10:15 UTCVendor advisory
  23. 2026-08-06 21:25 UTCEG score recompute
  24. 2026-08-06 21:25 UTCVendor advisory
  25. 2026-08-06 13:47 UTCEPSS rescore
  26. 2026-08-06 08:36 UTCVendor advisory
  27. 2026-08-05 19:46 UTCEG score recompute
  28. 2026-08-05 19:46 UTCVendor advisory
  29. 2026-08-05 19:17 UTCEPSS rescore
  30. 2026-08-04 16:23 UTCEG score recompute
  31. 2026-08-04 16:23 UTCVendor advisory
  32. 2026-08-04 15:10 UTCEPSS rescore
  33. 2026-08-04 10:39 UTCEPSS rescore
  34. 2026-08-04 03:34 UTCVendor advisory
  35. 2026-08-03 14:44 UTCEG score recompute
  36. 2026-08-03 14:44 UTCVendor advisory
  37. 2026-08-03 10:36 UTCEPSS rescore
  38. 2026-08-02 23:29 UTCVendor advisory
  39. 2026-08-02 10:39 UTCEG score recompute
  40. 2026-08-02 10:39 UTCVendor advisory
  41. 2026-08-02 02:27 UTCEPSS rescore
  42. 2026-08-01 21:43 UTCVendor advisory
  43. 2026-08-01 08:53 UTCEG score recompute
  44. 2026-08-01 08:53 UTCVendor advisory
  45. 2026-08-01 04:16 UTCEPSS rescore
  46. 2026-07-31 13:20 UTCVendor advisory
  47. 2026-07-30 23:55 UTCEG score recompute
  48. 2026-07-30 23:55 UTCVendor advisory
  49. 2026-07-30 16:28 UTCEPSS rescore
  50. 2026-07-30 05:19 UTCEG score recompute
  51. 2026-07-30 05:19 UTCVendor advisory
  52. 2026-07-30 01:30 UTCEPSS rescore
  53. 2026-07-30 01:30 UTCEPSS rescore
  54. 2026-07-29 03:38 UTCEG score recompute
  55. 2026-07-28 15:37 UTCEPSS rescore
  56. 2026-07-28 01:55 UTCEG score recompute
  57. 2026-07-27 14:14 UTCEPSS rescore
  58. 2026-07-26 20:15 UTCEG score recompute
  59. 2026-07-26 14:54 UTCEPSS rescore
  60. 2026-07-26 14:54 UTCEPSS rescore
  61. 2026-07-25 14:18 UTCEPSS rescore
  62. 2026-07-25 14:18 UTCEPSS rescore
  63. 2026-07-24 14:18 UTCEPSS rescore
  64. 2026-07-24 14:18 UTCEPSS rescore
  65. 2026-07-23 14:18 UTCEPSS rescore
  66. 2026-07-23 14:18 UTCEPSS rescore
  67. 2026-07-23 03:18 UTCEG score recompute
  68. 2026-07-22 14:08 UTCEPSS rescore
  69. 2026-07-22 14:08 UTCEPSS rescore
  70. 2026-07-21 15:25 UTCEPSS rescore
  71. 2026-07-21 15:25 UTCEPSS rescore
  72. 2026-07-20 17:08 UTCEPSS rescore
  73. 2026-07-19 14:31 UTCEPSS rescore
  74. 2026-07-19 02:29 UTCEPSS rescore
  75. 2026-07-18 10:04 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-5038?
CVE-2026-5038 is a high vulnerability published on June 15, 2026. Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe() call does not propagate the stream destroy signal to the…
When was CVE-2026-5038 disclosed?
CVE-2026-5038 was first published in the National Vulnerability Database on June 15, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5038 actively exploited?
CVE-2026-5038 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 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-5038?
CVE-2026-5038 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-5038?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5038, 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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