CVE-2026-41566

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 71% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.4Exploit: None knownExposed: 0

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

Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kvrocks.

This issue affects Apache Kvrocks: 2.8.0.

Users are recommended to upgrade to version 2.16.0, which fixes the issue.

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: Track

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
Severity94% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 25, 2026

Advisory Details (2)

Auto-updated Aug 23, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-41566: Apache Kvrocks: Improper permission for the APPLYBATCH command

http://www.openwall.com/lists/oss-security/2026/06/25/1
generic
https://lists.apache.org/thread/zng5lp7psgkcv9jnm9tztdlm3rmzfydl

Vendor Advisories for CVE-2026-41566(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 37× in last 7d / 202× 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 369 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-41566?
CVE-2026-41566 is a critical vulnerability published on June 25, 2026. Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kvrocks. This issue affects Apache Kvrocks: 2.8.0. Users are recommended to upgrade to version 2.16.0, which fixes the issue.
When was CVE-2026-41566 disclosed?
CVE-2026-41566 was first published in the National Vulnerability Database on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41566 actively exploited?
CVE-2026-41566 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.9% of all scored CVEs.
What is the CVSS score of CVE-2026-41566?
CVE-2026-41566 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-41566?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41566, 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.

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