CVE-2026-46413

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (42nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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 (value × EchelonGraph’s weight)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (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

July 9, 2026

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Jul 9, 2026
Fix named in the CVE record. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Regular users can route multipart uploads into the admin backup store · Advisory · discourse/discourse · GitHub

https://github.com/discourse/discourse/security/advisories/GHSA-3mvf-q9rg-w6m7
GitHub commit

commit abaa664c5df8 (discourse/discourse)

Fix landed in discourse/discourse commit abaa664c5df8 — awaiting tagged release

https://github.com/discourse/discourse/commit/abaa664c5df84026efb2ca264ba0f5586c3f2b01
GitHub commit

commit a53df26dcf7e (discourse/discourse)

Fix landed in discourse/discourse commit a53df26dcf7e — awaiting tagged release

https://github.com/discourse/discourse/commit/a53df26dcf7e50ce2b20bfd5454a0c9d44b8fc7d
GitHub commit

commit 7ddde266617b (discourse/discourse)

Fix landed in discourse/discourse commit 7ddde266617b — awaiting tagged release

https://github.com/discourse/discourse/commit/7ddde266617b452152c1bf5f903f6c07be38fc40
GitHub commit

commit 1f1ded8dd361 (discourse/discourse)

Fix landed in discourse/discourse commit 1f1ded8dd361 — awaiting tagged release

https://github.com/discourse/discourse/commit/1f1ded8dd361d81786bff17b35e1138d6ee299c0

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 32× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 128 refreshes 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 28 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-12 16:02 UTCEG score recompute
  4. 2026-10-11 19:45 UTCEG score recompute
  5. 2026-10-11 17:00 UTCEG score recompute
  6. 2026-10-11 14:25 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-10-01 16:00 UTCEG score recompute
  18. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-09-28 09:59 UTCEG score recompute
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-09-24 11:22 UTCEG score recompute
  25. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 75 more
  1. 2026-09-23 05:52 UTCEG score recompute
  2. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-09-18 05:28 UTCEG score recompute
  5. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-09-14 08:52 UTCEG score recompute
  9. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-09-13 08:17 UTCEG score recompute
  11. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-09-12 03:20 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-09-05 22:00 UTCEG score recompute
  20. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  21. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-08-30 06:42 UTCEG score recompute
  25. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  26. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  27. 2026-08-27 21:43 UTCEG score recompute
  28. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  29. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  30. 2026-08-26 08:18 UTCEG score recompute
  31. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  32. 2026-08-25 07:28 UTCEG score recompute
  33. 2026-08-23 06:17 UTCEG score recompute
  34. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  35. 2026-08-22 05:42 UTCEG score recompute
  36. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  37. 2026-08-21 05:07 UTCEG score recompute
  38. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  39. 2026-08-20 04:30 UTCEG score recompute
  40. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  41. 2026-08-19 03:54 UTCEG score recompute
  42. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  43. 2026-08-18 02:54 UTCEG score recompute
  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  45. 2026-08-17 01:12 UTCEG score recompute
  46. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  47. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  48. 2026-08-16 00:37 UTCEG score recompute
  49. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  50. 2026-08-13 23:27 UTCEG score recompute
  51. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  52. 2026-08-12 22:51 UTCEG score recompute
  53. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  54. 2026-08-11 22:17 UTCEG score recompute
  55. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  56. 2026-08-09 21:07 UTCEG score recompute
  57. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  58. 2026-08-08 20:33 UTCEG score recompute
  59. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  60. 2026-08-07 19:58 UTCEG score recompute
  61. 2026-08-06 19:23 UTCEG score recompute
  62. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  63. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  64. 2026-08-04 18:14 UTCEG score recompute
  65. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  66. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  67. 2026-08-03 17:28 UTCEG score recompute
  68. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  69. 2026-08-02 16:41 UTCEG score recompute
  70. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  71. 2026-08-01 16:06 UTCEG score recompute
  72. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  73. 2026-07-31 15:31 UTCEG score recompute
  74. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  75. 2026-07-30 14:53 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-46413?
CVE-2026-46413 is a medium-severity vulnerability; its CVE record was published on July 9, 2026. Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
When was the CVE record for CVE-2026-46413 published?
The CVE record for CVE-2026-46413 was published on July 9, 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 July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-46413 actively exploited?
CVE-2026-46413 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46413?
CVE-2026-46413 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-46413?
The CVE record for CVE-2026-46413 names the fix: "This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5."

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