CVE-2026-18888

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt adjacent memory. A user who can store data in a collection read through the BI Connector could use this to crash the application performing the read.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 12, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
Patch available. Sources: github_release.
github_release Patch Available

v1.4.9

Patch available: mongodb/mongo-bi-connector-odbc-driver v1.4.9

https://github.com/mongodb/mongo-bi-connector-odbc-driver/releases/tag/v1.4.9

Vendor Advisories for CVE-2026-18888(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 14× in last 7d / 70× 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 141 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18888?
CVE-2026-18888 is a medium vulnerability published on August 12, 2026. The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt…
When was CVE-2026-18888 disclosed?
CVE-2026-18888 was first published on August 12, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18888 actively exploited?
CVE-2026-18888 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18888?
CVE-2026-18888 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-2026-18888?
A fix for CVE-2026-18888 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18888 are linked in the Vendor Advisories panel on this page.

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