CVE-2026-9101

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-05-20. the CNA's CVSS baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:mongodb, epss, ghsa
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

Prototype pollution in csv parsing logic during import can lead to untrusted file paths (but not arguments) entering shell.openExternal after specific user behavior leading to "1-click" command execution.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
33.1%
KEV
Not listed

Published

May 20, 2026

Last Modified

May 27, 2026

Advisory Details (1)

Auto-updated Jun 27, 2026
No patch confirmed yet.
generic

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https://jira.mongodb.org/browse/COMPASS-10657

Vendor Advisories for CVE-2026-9101(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 6× in last 7d / 52× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-07 13:46 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 02:31 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-01 15:07 UTCEPSS rescore
  12. 2026-06-30 23:22 UTCEPSS rescore
  13. 2026-06-29 20:26 UTCEG score recompute
  14. 2026-06-29 20:26 UTCGHSA enrichment
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-27 20:11 UTCEG score recompute
  19. 2026-06-27 20:11 UTCGHSA enrichment
  20. 2026-06-27 03:08 UTCEPSS rescore
  21. 2026-06-26 19:33 UTCEG score recompute
  22. 2026-06-26 19:33 UTCGHSA enrichment
  23. 2026-06-25 15:09 UTCEG score recompute
  24. 2026-06-25 15:09 UTCGHSA enrichment
  25. 2026-06-25 13:50 UTCEPSS rescore
Show 75 more
  1. 2026-06-24 14:05 UTCEPSS rescore
  2. 2026-06-23 21:33 UTCEPSS rescore
  3. 2026-06-22 14:25 UTCEPSS rescore
  4. 2026-06-21 14:56 UTCEPSS rescore
  5. 2026-06-21 01:59 UTCEPSS rescore
  6. 2026-06-19 19:26 UTCEPSS rescore
  7. 2026-06-18 17:52 UTCEPSS rescore
  8. 2026-06-17 20:02 UTCEG score recompute
  9. 2026-06-17 20:02 UTCGHSA enrichment
  10. 2026-06-17 17:53 UTCEPSS rescore
  11. 2026-06-16 20:49 UTCEG score recompute
  12. 2026-06-16 20:49 UTCGHSA enrichment
  13. 2026-06-16 17:53 UTCEPSS rescore
  14. 2026-06-15 22:53 UTCEG score recompute
  15. 2026-06-15 22:52 UTCGHSA enrichment
  16. 2026-06-15 17:49 UTCEPSS rescore
  17. 2026-06-15 17:49 UTCEPSS rescore
  18. 2026-06-14 23:18 UTCEPSS rescore
  19. 2026-06-14 20:23 UTCEG score recompute
  20. 2026-06-14 20:23 UTCGHSA enrichment
  21. 2026-06-13 23:00 UTCEPSS rescore
  22. 2026-06-13 22:26 UTCEG score recompute
  23. 2026-06-13 22:26 UTCGHSA enrichment
  24. 2026-06-13 00:12 UTCEG score recompute
  25. 2026-06-13 00:12 UTCGHSA enrichment
  26. 2026-06-12 23:12 UTCEPSS rescore
  27. 2026-06-12 23:12 UTCEPSS rescore
  28. 2026-06-12 02:11 UTCEG score recompute
  29. 2026-06-12 02:11 UTCGHSA enrichment
  30. 2026-06-11 14:00 UTCEPSS rescore
  31. 2026-06-11 04:14 UTCEG score recompute
  32. 2026-06-11 04:14 UTCGHSA enrichment
  33. 2026-06-10 22:19 UTCEPSS rescore
  34. 2026-06-10 13:22 UTCEPSS rescore
  35. 2026-06-10 06:17 UTCEG score recompute
  36. 2026-06-10 06:17 UTCGHSA enrichment
  37. 2026-06-09 08:21 UTCEG score recompute
  38. 2026-06-09 08:21 UTCGHSA enrichment
  39. 2026-06-08 14:17 UTCEPSS rescore
  40. 2026-06-08 10:24 UTCEG score recompute
  41. 2026-06-08 10:24 UTCGHSA enrichment
  42. 2026-06-07 15:25 UTCEPSS rescore
  43. 2026-06-07 12:27 UTCEG score recompute
  44. 2026-06-07 12:27 UTCGHSA enrichment
  45. 2026-06-06 14:31 UTCEG score recompute
  46. 2026-06-06 14:31 UTCGHSA enrichment
  47. 2026-06-06 13:47 UTCEPSS rescore
  48. 2026-06-05 22:47 UTCEPSS rescore
  49. 2026-06-05 16:35 UTCEG score recompute
  50. 2026-06-05 16:35 UTCGHSA enrichment
  51. 2026-06-05 06:10 UTCEPSS rescore
  52. 2026-06-04 18:38 UTCEG score recompute
  53. 2026-06-04 18:38 UTCGHSA enrichment
  54. 2026-06-04 13:12 UTCEPSS rescore
  55. 2026-06-03 20:41 UTCEG score recompute
  56. 2026-06-03 20:41 UTCGHSA enrichment
  57. 2026-06-02 22:44 UTCEG score recompute
  58. 2026-06-02 22:44 UTCGHSA enrichment
  59. 2026-06-02 20:13 UTCEPSS rescore
  60. 2026-06-02 00:47 UTCEG score recompute
  61. 2026-06-02 00:47 UTCGHSA enrichment
  62. 2026-06-01 13:52 UTCEPSS rescore
  63. 2026-06-01 02:51 UTCEG score recompute
  64. 2026-06-01 02:50 UTCGHSA enrichment
  65. 2026-05-31 22:30 UTCEPSS rescore
  66. 2026-05-31 00:16 UTCEPSS rescore
  67. 2026-05-29 13:44 UTCEPSS rescore
  68. 2026-05-28 13:44 UTCEPSS rescore
  69. 2026-05-27 13:40 UTCEPSS rescore
  70. 2026-05-26 13:44 UTCEPSS rescore
  71. 2026-05-26 07:18 UTCEPSS rescore
  72. 2026-05-23 00:07 UTCEG score recompute
  73. 2026-05-22 22:08 UTCEG score recompute
  74. 2026-05-21 22:43 UTCEPSS rescore
  75. 2026-05-20 17:36 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9101?
CVE-2026-9101 is a medium vulnerability published on May 20, 2026. Prototype pollution in csv parsing logic during import can lead to untrusted file paths (but not arguments) entering shell.openExternal after specific user behavior leading to "1-click" command execution.
When was CVE-2026-9101 disclosed?
CVE-2026-9101 was first published in the National Vulnerability Database on May 20, 2026, with the most recent update on May 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9101 actively exploited?
CVE-2026-9101 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9101?
CVE-2026-9101 has a CVSS v4.0 base score of 4.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-9101?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9101, 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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