CVE-2026-53710Public exploitNetwork attack vectorHinoki check available

Unauthenticated OS command execution via unguarded getattr

Published Sep 15, 2026 · Updated Sep 15, 2026

Code injection in IBM ContextForge before 1.0.2 allows remote attackers to execute OS commands through the Python sandbox MCP tool. The python_sandbox_server exposes raw getattr in safe_builtins without a getattr guard, while validate_code misses dangerous dunder names assembled at runtime. Unauthenticated exploitation requires reachable HTTP or SSE transport and runs commands with the server process privileges; stdio-only deployments lack that network path.

CVSS severity10.0
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in IBM ContextForge before 1.0.2 allows remote attackers to execute OS commands through the Python sandbox MCP tool. The python_sandbox_server exposes raw getattr in safe_builtins without a getattr guard, while validate_code misses dangerous dunder names assembled at runtime. Unauthenticated exploitation requires reachable HTTP or SSE transport and runs commands with the server process privileges; stdio-only deployments lack that network path.

The record

CVE
CVE-2026-53710
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
IBM
Product
ContextForge
Classifications
CWE-94, CWE-693, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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=< 1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · ContextForgeversion=< 1.0.2

Published CVSS scores

10.0GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-693Protection Mechanism Failure
T1059.006Command and Scripting Interpreter: Python

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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