CVE-2026-93765

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-18. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-83190 (ENISA EUVD) · GHSA-8899-fxx7-fwx3 (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (MongoDB, Inc.) lists MongoDB Inc. Mongoid versions 9.0.0 up to and including 9.0.11, 8.1.0 up to and including 8.1.12 and 8.0.0 up to and including 8.0.12 as affected. No release containing a fix is confirmed on record.

Mongoid contains an unsafe reflection weakness in the document persistence layer of its object-document mapping code. Input whose keys are passed through from an unauthenticated party by an embedding application can cause unintended internal method invocation instead of the intended array field update. This may result in unintended removal of stored records and in the embedding application becoming unresponsive.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 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: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
43rd
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-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 2026-11-01). 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.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.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).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule 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.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

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 18, 2026

Last Modified

September 25, 2026

Advisory Details (1)

Auto-updated Sep 18, 2026
No fix on record yet.
Web page

SAML Login - MongoDB Jira - MongoDB Jira

https://jira.mongodb.org/browse/MONGOID-5973

Vendor Advisories for CVE-2026-93765(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 136× 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 257 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 157 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 08:36 UTCEG score recompute
  2. 2026-11-02 08:35 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  3. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-11-01 09:23 UTCEG score recompute
  5. 2026-11-01 09:23 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  6. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-31 10:12 UTCEG score recompute
  8. 2026-10-31 10:12 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  9. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-30 10:54 UTCEG score recompute
  11. 2026-10-30 10:54 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  12. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-29 11:43 UTCEG score recompute
  14. 2026-10-29 11:43 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  15. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  16. 2026-10-28 12:32 UTCEG score recompute
  17. 2026-10-28 12:32 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  18. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-10-27 13:20 UTCEG score recompute
  20. 2026-10-27 13:20 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  21. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  22. 2026-10-26 13:42 UTCEG score recompute
  23. 2026-10-26 13:42 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  24. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-10-25 14:10 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
Show 75 more
  1. 2026-10-25 13:49 UTCEG score recompute
  2. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-24 14:58 UTCEG score recompute
  4. 2026-10-24 14:58 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  5. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-10-23 15:47 UTCEG score recompute
  7. 2026-10-23 15:46 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  8. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-22 16:30 UTCEG score recompute
  10. 2026-10-22 16:30 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  11. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-21 16:13 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  13. 2026-10-20 17:01 UTCEG score recompute
  14. 2026-10-20 17:01 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  15. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-19 17:49 UTCEG score recompute
  17. 2026-10-19 17:49 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  18. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-18 18:34 UTCEG score recompute
  20. 2026-10-18 18:34 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  21. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-18 05:48 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  23. 2026-10-18 02:58 UTCEG score recompute
  24. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-10-17 06:10 UTCEG score recompute
  26. 2026-10-17 06:10 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  27. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-10-16 06:58 UTCEG score recompute
  29. 2026-10-16 06:58 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  30. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-10-15 05:40 UTCEG score recompute
  32. 2026-10-15 05:40 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  33. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  34. 2026-10-14 01:19 UTCEG score recompute
  35. 2026-10-14 01:19 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  36. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  37. 2026-10-12 21:33 UTCEG score recompute
  38. 2026-10-12 21:32 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  39. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  40. 2026-10-12 14:42 UTCEG score recompute
  41. 2026-10-12 04:53 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  42. 2026-10-11 23:09 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  43. 2026-10-11 19:12 UTCEG score recompute
  44. 2026-10-11 19:07 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  45. 2026-10-11 16:28 UTCEG score recompute
  46. 2026-10-11 15:03 UTCEG score recompute
  47. 2026-10-11 15:03 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  48. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-10-11 13:41 UTCEG score recompute
  50. 2026-10-11 10:59 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  51. 2026-10-11 06:49 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  52. 2026-10-11 02:47 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  53. 2026-10-10 22:38 UTCEG score recompute
  54. 2026-10-10 22:38 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  55. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  56. 2026-10-10 18:24 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  57. 2026-10-10 14:23 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  58. 2026-10-10 10:21 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  59. 2026-10-10 06:18 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  60. 2026-10-10 02:15 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  61. 2026-10-09 22:12 UTCEG score recompute
  62. 2026-10-09 22:12 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  63. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  64. 2026-10-09 18:05 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  65. 2026-10-09 14:02 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  66. 2026-10-09 09:55 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  67. 2026-10-09 05:51 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  68. 2026-10-09 01:48 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  69. 2026-10-08 21:47 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  70. 2026-10-08 17:25 UTCEG score recompute
  71. 2026-10-08 17:25 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  72. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  73. 2026-10-08 10:12 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  74. 2026-10-08 06:10 UTCGHSA enrichmentGHSA-8899-fxx7-fwx3 · GitHub severity HIGH · GitHub CVSS 9.1
  75. 2026-10-08 02:07 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-93765?
CVE-2026-93765 is a critical-severity vulnerability; its CVE record was published on September 18, 2026. Mongoid contains an unsafe reflection weakness in the document persistence layer of its object-document mapping code. Input whose keys are passed through from an unauthenticated party by an embedding application can cause unintended internal method invocation instead of the intended array field…
When was the CVE record for CVE-2026-93765 published?
The CVE record for CVE-2026-93765 was published on September 18, 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 25, 2026; the record at its source may have been updated since.
Is CVE-2026-93765 actively exploited?
CVE-2026-93765 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93765?
CVE-2026-93765 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-93765?
No fix for CVE-2026-93765 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (MongoDB, Inc.) lists MongoDB Inc. Mongoid versions 9.0.0 up to and including 9.0.11, 8.1.0 up to and including 8.1.12 and 8.0.0 up to and including 8.0.12 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-93765 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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