CVE-2026-18687

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

MongoDB Server's handling of a Queryable Encryption maintenance operation did not properly validate certain request parameters against the collection's encrypted field configuration before use. An authenticated user with readWrite privileges could submit a specially formed request that leads to a server crash or excessive internal writes, resulting in resource exhaustion and corruption of encrypted index data.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

August 11, 2026

Last Modified

September 16, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

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https://jira.mongodb.org/browse/SERVER-130628

Vendor Advisories for CVE-2026-18687(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 26× in last 7d / 108× 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 147 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-18687?
CVE-2026-18687 is a high vulnerability published on August 11, 2026. MongoDB Server's handling of a Queryable Encryption maintenance operation did not properly validate certain request parameters against the collection's encrypted field configuration before use. An authenticated user with readWrite privileges could submit a specially formed request that leads to a…
When was CVE-2026-18687 disclosed?
CVE-2026-18687 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18687 actively exploited?
CVE-2026-18687 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 93.1% of all scored CVEs.
What is the CVSS score of CVE-2026-18687?
CVE-2026-18687 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-18687?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18687, 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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