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CVE Record

CVE-2026-37751: An OS command injection vulnerability in the killSessionSync function (lib/agent-runtime.ts) of 23blocks-OS...

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.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

A command-injection flaw in 23blocks-OS ai-maestro v0.24.17 can let an unauthenticated remote attacker run arbitrary operating-system commands through crafted input. Successful exploitation could expose data, alter the system, or interrupt service. The supplied records do not establish whether the vulnerable function is reachable in every deployment.

Executive priority

Treat as an immediate remediation priority for exposed or unverified ai-maestro deployments. The combination of remote unauthenticated access and potential full-system impact warrants urgent inventory and patch validation. Do not claim an incident solely from vulnerability presence; investigate telemetry separately.

Technical view

CVE-2026-37751 is CWE-78 in killSessionSync within lib/agent-runtime.ts. Crafted input can reach an operating-system command without adequate neutralization. CVSS 3.1 rates it 9.8: network-accessible, low complexity, no privileges or user interaction, with high confidentiality, integrity, and availability impact.

Likely exposure

Potential exposure includes deployments running ai-maestro v0.24.17 where untrusted remote input can reach killSessionSync. Actual reachability, default configuration, and service privileges are not documented in the supplied bundle. The structured affected-product fields are unspecified, so inventory verification is essential.

Exploitation context

The CVSS vector indicates remote, unauthenticated exploitation without user interaction. However, the supplied bundle says this CVE is not in CISA KEV and provides no evidence of active exploitation. A public research advisory and remediation commit are referenced, which may increase attacker awareness.

Researcher notes

The record identifies ai-maestro v0.24.17, killSessionSync, and lib/agent-runtime.ts, but structured affected-product data is listed as unspecified. The referenced commit likely documents remediation, although the supplied bundle does not name a fixed release. No KEV listing or confirmed exploitation evidence is provided.

Mitigation direction

  • Identify and prioritize all deployments using ai-maestro v0.24.17.
  • Review the GitHub security advisory for the vendor-designated fixed release.
  • Apply the vendor-supported fix corresponding to the referenced remediation commit.
  • Until remediated, restrict untrusted access to interfaces that can invoke session termination.
  • Limit the service account's operating-system privileges to reduce potential impact.

Validation and detection

  • Confirm deployed ai-maestro versions through inventories, manifests, and runtime records.
  • Determine whether remote or untrusted input can reach killSessionSync.
  • Compare deployed lib/agent-runtime.ts behavior with the referenced remediation commit.
  • Review relevant process and application logs for unexpected command execution indicators.
  • After remediation, verify the vulnerable version and code path are absent.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-37751 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-37751Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command

Improper Neutralization of Special Elements used in an OS Command represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.