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CVE-2026-26217

Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling

9.2 CriticalFix available

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

2.10%Up 2.0 points since Feb 13, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.2

Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Record
CVE-2026-26217
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
EUVDEUVD-2026-6727 9.2

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Record
EUVD-2026-6727
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-vx9w-5cx4-9796 9.2

Crawl4AI Has Local File Inclusion in Docker API via file:// URLs

A local file inclusion vulnerability exists in the Crawl4AI Docker API. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing attackers to read arbitrary files from the server filesystem.

Attack Vector:

POST /execute_js
{
    "url": "file:///etc/passwd",
    "scripts": ["document.body.innerText"]
}

Impact

An unauthenticated attacker can:

  • Read sensitive files (/etc/passwd, /etc/shadow, application configs)
  • Access environment variables via /proc/self/environ
  • Discover internal application structure
  • Potentially read credentials and API keys

Workarounds

  1. Disable the Docker API
  2. Add authentication to the API
  3. Use network-level filtering
Record
GHSA-vx9w-5cx4-9796
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
NVD 9.2

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Record
CVE-2026-26217
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
OSV 9.2

Crawl4AI < 0.8.0 Docker API Local File Inclusion via file URL Handling

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Record
CVE-2026-26217
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Weakness
CWE-22
Updated
2026-11-02
OSVGHSA-vx9w-5cx4-9796 9.2

Crawl4AI Has Local File Inclusion in Docker API via file:// URLs

A local file inclusion vulnerability exists in the Crawl4AI Docker API. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing attackers to read arbitrary files from the server filesystem.

Attack Vector:

POST /execute_js
{
    "url": "file:///etc/passwd",
    "scripts": ["document.body.innerText"]
}

Impact

An unauthenticated attacker can:

  • Read sensitive files (/etc/passwd, /etc/shadow, application configs)
  • Access environment variables via /proc/self/environ
  • Discover internal application structure
  • Potentially read credentials and API keys

Workarounds

  1. Disable the Docker API
  2. Add authentication to the API
  3. Use network-level filtering
Record
GHSA-vx9w-5cx4-9796
CVSS 4.0
9.2 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
CVSS 3.1
8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Weakness
CWE-22
Updated
2026-11-02
OSVPYSEC-2026-34 7.5

Crawl4AI versions prior to 0.8.0 contain a local file inclusion vulnerability in the Docker API deployment. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing unauthenticated remote attackers to read arbitrary files from the server filesystem. An attacker can access sensitive files such as /etc/passwd, /etc/shadow, application configuration files, and environment variables via /proc/self/environ, potentially exposing credentials, API keys, and internal application structure.

Record
PYSEC-2026-34
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
crawl4ai
PyPI
 before 0.8.0
0.8.0
crawl4ai
PyPI
 before 0.8.0, plus listed versions
0.3.00.3.10.3.20.3.30.3.4
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0.3.50.3.60.3.70.3.710.3.720.3.730.3.7310.3.740.3.7410.3.7420.3.7430.3.7440.3.7450.3.7460.3.80.4.00.4.10.4.210.4.220.4.230.4.240.4.2410.4.2420.4.2430.4.2440.4.2450.4.2460.4.2470.4.2480.4.248b30.4.3b10.4.3b20.4.3b30.5.00.5.0.post10.5.0.post20.5.0.post30.5.0.post40.5.0.post50.5.0.post60.5.0.post70.5.0.post80.6.00.6.0rc10.6.1
0.8.0

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
NucleiCrawl4AI < 0.8.0 - Local File Inclusion

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, Nuclei, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-26217 is a critical vulnerability (CVSS 9.2) in Kidocode Crawl4ai, published January 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.10%, the 81st percentile. Fixed in crawl4ai 0.8.0.

References

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