CVE-2026-88932

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory (severity: MODERATE) published 2026-09-28. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-77332 (ENISA EUVD) · GHSA-3pph-fpjx-jg34 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
45th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
Patch available. Sources: github.
Web page

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html
GitHub advisoryMentions a patch (unverified)

multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads · Advisory · expressjs/multer · GitHub

https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatansible-automation-platform/bootc-automation-portal-rhel9:17918656602026-10-13redhat
redhatrhdh/rhdh-hub-rhel9:17913114952026-10-08redhat
redhatrhdh/red-hat-developer-hub-backstage-plugin-orchestrator-backend:17912512822026-10-06redhat
redhatansible-automation-platform/automation-portal:17902549632026-09-28redhat
redhatansible-automation-platform/automation-portal:17902564052026-09-28redhat
npmmulter @ 2.4.0 (fixes >= 2.2.0, < 2.4.0)—ghsa

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

(2 across 2 ecosystems)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-multer2.2.0+~cs3.1.0-1, 2.2.0+~cs3.1.0-2, 2.2.0+~cs3.2.0-1
  • every version up to 2.4.0+~cs3.2.0-1: fixed in 2.4.0+~cs3.2.0-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
multer—
  • 2.2.0 up to 2.4.0: fixed in 2.4.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 109 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 9 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:35 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  5. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  6. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  7. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  8. 2026-11-05 16:39 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  10. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  11. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  13. 2026-11-01 07:37 UTCGHSA enrichmentGHSA-3pph-fpjx-jg34 · GitHub severity MODERATE · GitHub CVSS 5.3
  14. 2026-11-01 07:37 UTCEchelonGraph re-scored
  15. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  16. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  17. 2026-10-29 22:25 UTCOSV refresh
  18. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  19. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  22. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  23. 2026-10-25 13:53 UTCEchelonGraph re-scored
  24. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  25. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
Show 75 more
  1. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-22 12:32 UTCEchelonGraph re-scored
  3. 2026-10-22 12:32 UTCVendor advisory
  4. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  8. 2026-10-18 03:03 UTCEchelonGraph re-scored
  9. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  14. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-12 14:49 UTCEchelonGraph re-scored
  16. 2026-10-11 19:47 UTCVendor advisory
  17. 2026-10-11 19:15 UTCEchelonGraph re-scored
  18. 2026-10-11 16:32 UTCEchelonGraph re-scored
  19. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-11 13:48 UTCEchelonGraph re-scored
  21. 2026-10-10 20:48 UTCEchelonGraph re-scored
  22. 2026-10-10 20:48 UTCVendor advisory
  23. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-09 21:56 UTCEchelonGraph re-scored
  25. 2026-10-09 21:56 UTCVendor advisory
  26. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  27. 2026-10-08 23:01 UTCEchelonGraph re-scored
  28. 2026-10-08 23:01 UTCVendor advisory
  29. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  30. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  31. 2026-10-07 22:23 UTCVendor advisory
  32. 2026-10-06 22:43 UTCEchelonGraph re-scored
  33. 2026-10-06 22:43 UTCVendor advisory
  34. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  35. 2026-10-05 23:52 UTCEchelonGraph re-scored
  36. 2026-10-05 23:52 UTCVendor advisory
  37. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-10-05 00:30 UTCEchelonGraph re-scored
  39. 2026-10-05 00:30 UTCVendor advisory
  40. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  41. 2026-10-04 01:20 UTCEchelonGraph re-scored
  42. 2026-10-04 01:20 UTCVendor advisory
  43. 2026-10-03 02:26 UTCEchelonGraph re-scored
  44. 2026-10-03 02:26 UTCVendor advisory
  45. 2026-10-02 03:23 UTCEchelonGraph re-scored
  46. 2026-10-02 03:23 UTCVendor advisory
  47. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  48. 2026-10-01 04:16 UTCEchelonGraph re-scored
  49. 2026-10-01 04:16 UTCVendor advisory
  50. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  51. 2026-09-30 05:23 UTCEchelonGraph re-scored
  52. 2026-09-30 05:23 UTCVendor advisory
  53. 2026-09-29 06:27 UTCEchelonGraph re-scored
  54. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  55. 2026-09-28 07:35 UTCEchelonGraph re-scored
  56. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  57. 2026-09-27 08:43 UTCEchelonGraph re-scored
  58. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  59. 2026-09-26 09:51 UTCEchelonGraph re-scored
  60. 2026-09-25 10:55 UTCEchelonGraph re-scored
  61. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  62. 2026-09-24 11:50 UTCEchelonGraph re-scored
  63. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  64. 2026-09-23 12:57 UTCEchelonGraph re-scored
  65. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  66. 2026-09-22 14:05 UTCEchelonGraph re-scored
  67. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  68. 2026-09-21 15:13 UTCEchelonGraph re-scored
  69. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  70. 2026-09-19 17:27 UTCEchelonGraph re-scored
  71. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  72. 2026-09-17 19:34 UTCEchelonGraph re-scored
  73. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  74. 2026-09-16 19:58 UTCEchelonGraph re-scored
  75. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.3% · 24th percentile

Frequently asked(5)

What is CVE-2026-88932?
CVE-2026-88932 is a medium-severity vulnerability; its CVE record was published on September 14, 2026. multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned…
When was the CVE record for CVE-2026-88932 published?
The CVE record for CVE-2026-88932 was published on September 14, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 16, 2026; the record at its source may have been updated since.
Is CVE-2026-88932 actively exploited?
CVE-2026-88932 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-88932?
CVE-2026-88932 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-88932?
A fix for CVE-2026-88932 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-88932 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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