CVE-2026-40007

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-10. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB. When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's readLength method calls itself recursively each time it recognises the E-language prefix in socket data, with no depth limit. An unauthenticated attacker can send a stream of repeated E-language prefixes that drives the recursion arbitrarily deep, exhausting the receiver thread's JVM stack and raising StackOverflowError.

This issue affects Apache IoTDB: from 1.0.0 before 2.0.10.

Users are recommended to upgrade to version 2.0.10, which fixes the issue.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 10, 2026

Advisory Details (2)

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

oss-security - CVE-2026-40007: Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError

http://www.openwall.com/lists/oss-security/2026/07/10/4
generic
https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m

Vendor Advisories for CVE-2026-40007(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 106× 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 163 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-40007?
CVE-2026-40007 is a high vulnerability published on July 10, 2026. Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB. When pipeairgapreceiverenabled=true, the IoTDB AirGap receiver's readLength method calls itself recursively each time it recognises the E-language prefix in socket data, with no depth limit. An unauthenticated…
When was CVE-2026-40007 disclosed?
CVE-2026-40007 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40007 actively exploited?
CVE-2026-40007 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 60.1% of all scored CVEs.
What is the CVSS score of CVE-2026-40007?
CVE-2026-40007 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-40007?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40007, 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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