CVE-2026-56258
Crawl4AI - Arbitrary File Write via output_path Symlink and TOCTOU
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Crawl4AI before 0.8.8 contains an arbitrary file write vulnerability in the screenshot and PDF endpoints that allows unauthenticated attackers to write files outside the intended directory via symlink and time-of-check-time-of-use (TOCTOU) attacks on the output_path parameter. Remote attackers can exploit insufficient path validation and symlink following to achieve arbitrary file write and potential code execution on systems where the runtime user has write access to executable or cron locations.
| CWE | CWE-22 |
| Vendor | crawl4ai |
| Product | crawl4ai |
| Published | Jun 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Crawl4AI / Crawl4AI
0 < 0.8.8