CVE-2026-18692

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of unintended code.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA SSVC

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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 16, 2026

Advisory Details (1)

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

Loading...

https://jira.mongodb.org/browse/SERVER-129887

Vendor Advisories for CVE-2026-18692(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 17× in last 7d / 96× 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 196 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-18692?
CVE-2026-18692 is a high vulnerability published on August 11, 2026. An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a server crash or, potentially, execution of…
When was CVE-2026-18692 disclosed?
CVE-2026-18692 was first published 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-2026-18692 actively exploited?
CVE-2026-18692 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18692?
CVE-2026-18692 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18692?
No fix for CVE-2026-18692 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 vendor advisories EchelonGraph has for CVE-2026-18692 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-18692

Explore →

Is Your Infrastructure Affected by CVE-2026-18692?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs