CVE-2026-19263Public exploitNetwork attack vector

Unauthenticated code execution via unsafe process spawning

Published Aug 8, 2026 · Updated Aug 8, 2026

Command injection in INQUIRE Lab MCP Bridge API allows remote attackers to execute programs through crafted POST /servers requests. The unauthenticated route copies caller-controlled command and args values into startServer, which passes them to child_process.spawn with shell execution and no executable allowlist. Any client that can reach the REST service can run a process with the bridge service's operating-system privileges, affecting confidentiality, integrity, and availability.

CVSS severity6.9
Medium
EPSS probability1.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in INQUIRE Lab MCP Bridge API allows remote attackers to execute programs through crafted POST /servers requests. The unauthenticated route copies caller-controlled command and args values into startServer, which passes them to child_process.spawn with shell execution and no executable allowlist. Any client that can reach the REST service can run a process with the bridge service's operating-system privileges, affecting confidentiality, integrity, and availability.

The record

CVE
CVE-2026-19263
Published
Aug 8, 2026
Updated
Aug 8, 2026
Vendor
INQUIRE Lab
Product
MCP Bridge API
Classifications
CWE-74, CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=b30a82aa1d1d1139e0de846c41c8aadee6e06114

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

INQUIRE Lab · MCP Bridge APIversion=b30a82aa1d1d1139e0de846c41c8aadee6e06114

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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