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Python CVE-2026-26216

CRITICAL
Code Injection (CWE-94)
2026-02-12 disclosure@vulncheck.com GHSA-5882-5rx9-xgxp
10.0
CVSS 3.1 · NVD
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NVD PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 12, 2026 - 16:16 nvd
CRITICAL 10.0

DescriptionCVE.org

Crawl4AI versions prior to 0.8.0 contain a remote code execution vulnerability in the Docker API deployment. The /crawl endpoint accepts a hooks parameter containing Python code that is executed using exec(). The __import__ builtin was included in the allowed builtins, allowing unauthenticated remote attackers to import arbitrary modules and execute system commands. Successful exploitation allows full server compromise, including arbitrary command execution, file read and write access, sensitive data exfiltration, and lateral movement within internal networks.

AnalysisAI

Remote code execution in Crawl4AI Docker API before 0.8.0 via hooks parameter. The /crawl endpoint accepts Python code in hooks that executes on the server. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send HTTP request to /crawl endpoint
Exploit
Supply hooks parameter with Python code
Execution
Execute arbitrary code via exec() with __import__ builtin
Impact
Achieve remote code execution as server process

Vulnerability AssessmentAI

Exploitation Crawl4AI versions prior to 0.8.0 with /crawl endpoint accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 10.0. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Attacker sends crawl request with malicious Python code in hooks parameter, achieving code execution in the Docker container.
Remediation Update to Crawl4AI 0.8.0. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all systems running Crawl4AI prior to 0.8.0 and isolate them from production networks or disable the /crawl endpoint immediately. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-26216 vulnerability details – vuln.today

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