CVE-2026-37751

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 2.9%CVSS: 9.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

An OS command injection vulnerability in the killSessionSync function (lib/agent-runtime.ts) of 23blocks-OS ai-maestro v0.24.17 allows attackers to execute arbitrary commands via a crafted input.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
2.9%
EPSS %ILE
86th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 28, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit.
Web page

CVE-research/ai-maestro-rce-advisory at main · rajukani100/CVE-research · GitHub

https://github.com/rajukani100/CVE-research/tree/main/ai-maestro-rce-advisory
GitHub commit Patch Available

commit 06d54f0687ad (23blocks-OS/ai-maestro)

Patch available: 23blocks-OS/ai-maestro v0.38.7 (contains commit 06d54f0687ad)

https://github.com/23blocks-OS/ai-maestro/commit/06d54f0687ad1fc5898a688a92f7e1f2df56c475

Vendor Advisories for CVE-2026-37751(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 28× in last 7d / 195× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 332 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 232 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 10:45 UTCEG score recompute
  2. 2026-10-14 10:45 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  4. 2026-10-13 09:12 UTCEG score recompute
  5. 2026-10-13 09:12 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  7. 2026-10-12 16:11 UTCEG score recompute
  8. 2026-10-12 08:13 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-11 19:53 UTCEG score recompute
  10. 2026-10-11 17:06 UTCEG score recompute
  11. 2026-10-11 14:33 UTCEG score recompute
  12. 2026-10-11 13:48 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  14. 2026-10-10 13:42 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-10 09:42 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-10-10 05:37 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-10 01:39 UTCEG score recompute
  18. 2026-10-10 01:38 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  20. 2026-10-09 07:02 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-09 02:49 UTCEG score recompute
  22. 2026-10-09 02:49 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-08 17:12 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  24. 2026-10-08 08:41 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-10-08 04:53 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 75 more
  1. 2026-10-08 01:06 UTCEG score recompute
  2. 2026-10-08 01:06 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-07 23:48 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  4. 2026-10-07 10:55 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-07 07:07 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-07 03:19 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-06 23:31 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-06 19:43 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-06 15:55 UTCEG score recompute
  10. 2026-10-06 15:55 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-06 15:17 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  12. 2026-10-06 11:19 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  13. 2026-10-06 07:29 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-06 00:50 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-05 20:37 UTCEG score recompute
  16. 2026-10-05 20:37 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-05 17:42 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  18. 2026-10-05 16:50 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-05 12:49 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-05 09:01 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-05 05:10 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-05 01:22 UTCEG score recompute
  23. 2026-10-05 01:22 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  25. 2026-10-04 20:34 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-04 16:23 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-04 12:36 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-10-04 08:49 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-10-04 05:01 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-10-04 01:14 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-03 19:20 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-10-03 14:55 UTCEG score recompute
  33. 2026-10-03 14:55 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-03 14:25 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  35. 2026-10-03 05:20 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-10-03 01:32 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-02 21:38 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-10-02 17:50 UTCEG score recompute
  39. 2026-10-02 17:50 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-10-02 14:01 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-02 10:04 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-10-02 06:17 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-10-02 00:40 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  44. 2026-10-01 19:50 UTCEG score recompute
  45. 2026-10-01 19:50 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-10-01 19:49 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  47. 2026-10-01 13:05 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-01 09:17 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-10-01 05:30 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-10-01 00:59 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  51. 2026-09-30 19:52 UTCEG score recompute
  52. 2026-09-30 19:52 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-09-30 15:03 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  54. 2026-09-30 11:35 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-09-30 07:48 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-09-30 04:00 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-09-29 16:13 UTCEG score recompute
  58. 2026-09-29 16:13 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-09-29 12:25 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-09-29 08:37 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-09-29 04:50 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-09-29 01:02 UTCEG score recompute
  63. 2026-09-29 01:02 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-09-28 21:11 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-09-28 14:35 UTCEG score recompute
  66. 2026-09-28 14:35 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-09-28 13:51 UTCEPSS rescoreEPSS 2.9% · 86th percentile
  68. 2026-09-28 10:45 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-09-28 06:56 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-09-28 03:08 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-09-27 23:21 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-09-27 19:34 UTCEG score recompute
  73. 2026-09-27 19:34 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-09-27 15:47 UTCEG score recompute
  75. 2026-09-27 15:47 UTCGHSA enrichmentGHSA-gcxx-4qc7-cmmw · GitHub severity CRITICAL · GitHub CVSS 9.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37751?
CVE-2026-37751 is a critical-severity vulnerability; its CVE record was published on August 28, 2026. An OS command injection vulnerability in the killSessionSync function (lib/agent-runtime.ts) of 23blocks-OS ai-maestro v0.24.17 allows attackers to execute arbitrary commands via a crafted input.
When was the CVE record for CVE-2026-37751 published?
The CVE record for CVE-2026-37751 was published on August 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-37751 actively exploited?
CVE-2026-37751 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% probability of exploitation in the next 30 days (86th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-37751?
CVE-2026-37751 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37751?
A fix for CVE-2026-37751 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-37751 are linked in the Vendor Advisories panel on this page.

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