CVE-2026-9742

MEDIUMNVD 5.97.5▲
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. NVD baseline CVSS 5.9; sources differ by 1.6.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.9Exploit: NoneExposed: 0

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

When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated clients, leading to pre-auth denial-of-service in affected product configurations.

CVSS v3
5.9
EG Score
7.5(medium)
EPSS
26.7%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 18, 2026

Advisory Details (1)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

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https://jira.mongodb.org/browse/SERVER-124183

Vendor Advisories for CVE-2026-9742(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 / 122× 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 122 total refreshes for this CVE.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 15:04 UTCEG score recompute
  4. 2026-07-05 15:03 UTCGHSA enrichment
  5. 2026-07-05 02:31 UTCEPSS rescore
  6. 2026-07-05 01:57 UTCEG score recompute
  7. 2026-07-05 01:57 UTCGHSA enrichment
  8. 2026-07-04 12:49 UTCEG score recompute
  9. 2026-07-04 12:49 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 21:42 UTCEG score recompute
  12. 2026-07-03 21:42 UTCGHSA enrichment
  13. 2026-07-03 08:36 UTCEG score recompute
  14. 2026-07-03 08:36 UTCGHSA enrichment
  15. 2026-07-02 18:14 UTCEG score recompute
  16. 2026-07-02 18:14 UTCGHSA enrichment
  17. 2026-07-02 05:07 UTCEG score recompute
  18. 2026-07-02 05:07 UTCGHSA enrichment
  19. 2026-07-01 15:59 UTCEG score recompute
  20. 2026-07-01 15:59 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 02:52 UTCEG score recompute
  23. 2026-07-01 02:51 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-30 13:45 UTCEG score recompute
Show 75 more
  1. 2026-06-30 13:45 UTCGHSA enrichment
  2. 2026-06-29 22:35 UTCEG score recompute
  3. 2026-06-29 22:35 UTCGHSA enrichment
  4. 2026-06-29 14:06 UTCEPSS rescore
  5. 2026-06-29 09:30 UTCEG score recompute
  6. 2026-06-29 09:30 UTCGHSA enrichment
  7. 2026-06-28 20:24 UTCEG score recompute
  8. 2026-06-28 20:24 UTCGHSA enrichment
  9. 2026-06-28 14:07 UTCEPSS rescore
  10. 2026-06-28 07:18 UTCEG score recompute
  11. 2026-06-28 07:18 UTCGHSA enrichment
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-27 18:13 UTCEG score recompute
  14. 2026-06-27 18:13 UTCGHSA enrichment
  15. 2026-06-27 05:07 UTCEG score recompute
  16. 2026-06-27 05:07 UTCGHSA enrichment
  17. 2026-06-27 03:08 UTCEPSS rescore
  18. 2026-06-26 15:57 UTCEG score recompute
  19. 2026-06-26 15:57 UTCGHSA enrichment
  20. 2026-06-26 02:52 UTCEG score recompute
  21. 2026-06-26 02:52 UTCGHSA enrichment
  22. 2026-06-25 13:50 UTCEPSS rescore
  23. 2026-06-25 13:47 UTCEG score recompute
  24. 2026-06-25 13:47 UTCGHSA enrichment
  25. 2026-06-25 00:41 UTCEG score recompute
  26. 2026-06-25 00:40 UTCGHSA enrichment
  27. 2026-06-24 14:05 UTCEPSS rescore
  28. 2026-06-24 11:33 UTCEG score recompute
  29. 2026-06-24 11:33 UTCGHSA enrichment
  30. 2026-06-23 22:26 UTCEG score recompute
  31. 2026-06-23 22:26 UTCGHSA enrichment
  32. 2026-06-23 21:33 UTCEPSS rescore
  33. 2026-06-23 08:57 UTCEG score recompute
  34. 2026-06-23 08:57 UTCGHSA enrichment
  35. 2026-06-22 18:35 UTCEG score recompute
  36. 2026-06-22 18:35 UTCGHSA enrichment
  37. 2026-06-22 14:25 UTCEPSS rescore
  38. 2026-06-22 04:30 UTCEG score recompute
  39. 2026-06-22 04:30 UTCGHSA enrichment
  40. 2026-06-21 15:15 UTCEG score recompute
  41. 2026-06-21 15:14 UTCGHSA enrichment
  42. 2026-06-21 14:56 UTCEPSS rescore
  43. 2026-06-21 01:59 UTCEPSS rescore
  44. 2026-06-21 01:35 UTCEG score recompute
  45. 2026-06-21 01:35 UTCGHSA enrichment
  46. 2026-06-20 11:00 UTCEG score recompute
  47. 2026-06-20 11:00 UTCGHSA enrichment
  48. 2026-06-19 21:53 UTCEG score recompute
  49. 2026-06-19 21:53 UTCGHSA enrichment
  50. 2026-06-19 19:26 UTCEPSS rescore
  51. 2026-06-19 08:23 UTCEG score recompute
  52. 2026-06-19 08:23 UTCGHSA enrichment
  53. 2026-06-18 18:33 UTCEG score recompute
  54. 2026-06-18 18:33 UTCGHSA enrichment
  55. 2026-06-18 17:52 UTCEPSS rescore
  56. 2026-06-18 15:52 UTCNVD updateCVSS v3 → 5.9 · severity → MEDIUM
  57. 2026-06-18 03:56 UTCEG score recompute
  58. 2026-06-18 03:56 UTCGHSA enrichment
  59. 2026-06-17 17:53 UTCEPSS rescore
  60. 2026-06-17 14:51 UTCEG score recompute
  61. 2026-06-17 14:51 UTCGHSA enrichment
  62. 2026-06-17 01:45 UTCEG score recompute
  63. 2026-06-17 01:45 UTCGHSA enrichment
  64. 2026-06-16 17:53 UTCEPSS rescore
  65. 2026-06-16 12:38 UTCEG score recompute
  66. 2026-06-16 12:38 UTCGHSA enrichment
  67. 2026-06-15 23:29 UTCEG score recompute
  68. 2026-06-15 23:28 UTCGHSA enrichment
  69. 2026-06-15 17:49 UTCEPSS rescore
  70. 2026-06-15 10:22 UTCEG score recompute
  71. 2026-06-15 10:22 UTCGHSA enrichment
  72. 2026-06-14 23:18 UTCEPSS rescore
  73. 2026-06-14 21:12 UTCEG score recompute
  74. 2026-06-14 21:12 UTCGHSA enrichment
  75. 2026-06-14 08:06 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-9742?
CVE-2026-9742 is a medium vulnerability published on June 9, 2026. When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated clients, leading to pre-auth denial-of-service in affected product…
When was CVE-2026-9742 disclosed?
CVE-2026-9742 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9742 actively exploited?
CVE-2026-9742 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9742?
CVE-2026-9742 has a CVSS v3 base score of 5.9 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.
How do I remediate CVE-2026-9742?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9742, 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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