CVE-2026-9743

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. 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
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

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

In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
22.5%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 14, 2026
No patch confirmed yet.
generic

Loading...

https://jira.mongodb.org/browse/SERVER-123688

Vendor Advisories for CVE-2026-9743(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 16× in last 7d / 77× 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.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 13:55 UTCEG score recompute
  4. 2026-07-05 13:54 UTCGHSA enrichment
  5. 2026-07-05 02:31 UTCEPSS rescore
  6. 2026-07-04 12:49 UTCEG score recompute
  7. 2026-07-04 12:49 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-03 01:08 UTCEG score recompute
  10. 2026-07-03 01:08 UTCGHSA enrichment
  11. 2026-07-02 00:04 UTCEG score recompute
  12. 2026-07-02 00:04 UTCGHSA enrichment
  13. 2026-07-01 15:07 UTCEPSS rescore
  14. 2026-06-30 23:22 UTCEPSS rescore
  15. 2026-06-30 23:00 UTCEG score recompute
  16. 2026-06-30 23:00 UTCGHSA enrichment
  17. 2026-06-29 21:56 UTCEG score recompute
  18. 2026-06-29 21:56 UTCGHSA enrichment
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-28 20:52 UTCEG score recompute
  21. 2026-06-28 20:52 UTCGHSA enrichment
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-27 19:48 UTCEG score recompute
  25. 2026-06-27 19:48 UTCGHSA enrichment
Show 52 more
  1. 2026-06-27 03:08 UTCEPSS rescore
  2. 2026-06-26 18:44 UTCEG score recompute
  3. 2026-06-26 18:44 UTCGHSA enrichment
  4. 2026-06-25 17:39 UTCEG score recompute
  5. 2026-06-25 17:39 UTCGHSA enrichment
  6. 2026-06-25 13:50 UTCEPSS rescore
  7. 2026-06-24 16:33 UTCEG score recompute
  8. 2026-06-24 16:33 UTCGHSA enrichment
  9. 2026-06-24 14:05 UTCEPSS rescore
  10. 2026-06-23 21:33 UTCEPSS rescore
  11. 2026-06-23 15:27 UTCEG score recompute
  12. 2026-06-23 15:27 UTCGHSA enrichment
  13. 2026-06-22 14:25 UTCEPSS rescore
  14. 2026-06-22 13:17 UTCEG score recompute
  15. 2026-06-22 13:16 UTCGHSA enrichment
  16. 2026-06-21 14:56 UTCEPSS rescore
  17. 2026-06-21 11:49 UTCEG score recompute
  18. 2026-06-21 11:49 UTCGHSA enrichment
  19. 2026-06-21 01:59 UTCEPSS rescore
  20. 2026-06-20 10:31 UTCEG score recompute
  21. 2026-06-20 10:31 UTCGHSA enrichment
  22. 2026-06-19 19:26 UTCEPSS rescore
  23. 2026-06-19 09:17 UTCEG score recompute
  24. 2026-06-19 09:17 UTCGHSA enrichment
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-18 07:53 UTCEG score recompute
  27. 2026-06-18 07:53 UTCGHSA enrichment
  28. 2026-06-17 17:53 UTCEPSS rescore
  29. 2026-06-17 06:50 UTCEG score recompute
  30. 2026-06-17 06:49 UTCGHSA enrichment
  31. 2026-06-16 17:53 UTCEPSS rescore
  32. 2026-06-16 05:42 UTCEG score recompute
  33. 2026-06-16 05:41 UTCGHSA enrichment
  34. 2026-06-15 17:49 UTCEPSS rescore
  35. 2026-06-15 04:37 UTCEG score recompute
  36. 2026-06-15 04:37 UTCGHSA enrichment
  37. 2026-06-14 23:18 UTCEPSS rescore
  38. 2026-06-14 03:33 UTCEG score recompute
  39. 2026-06-14 03:33 UTCGHSA enrichment
  40. 2026-06-13 23:00 UTCEPSS rescore
  41. 2026-06-13 02:29 UTCEG score recompute
  42. 2026-06-13 02:29 UTCGHSA enrichment
  43. 2026-06-12 23:12 UTCEPSS rescore
  44. 2026-06-12 23:12 UTCEPSS rescore
  45. 2026-06-12 01:25 UTCEG score recompute
  46. 2026-06-12 01:25 UTCGHSA enrichment
  47. 2026-06-11 14:00 UTCEPSS rescore
  48. 2026-06-11 00:21 UTCEG score recompute
  49. 2026-06-11 00:21 UTCGHSA enrichment
  50. 2026-06-10 22:19 UTCEPSS rescore
  51. 2026-06-09 23:17 UTCEG score recompute
  52. 2026-06-09 23:17 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9743?
CVE-2026-9743 is a medium vulnerability published on June 9, 2026. In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address…
When was CVE-2026-9743 disclosed?
CVE-2026-9743 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9743 actively exploited?
CVE-2026-9743 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9743?
CVE-2026-9743 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-9743?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9743, 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

Explore the affected products and dependency analysis for CVE-2026-9743

Explore →

Is Your Infrastructure Affected by CVE-2026-9743?

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

Start Free Scan →Browse All CVEs