Vulnerability details
CVE-2026-91940
unclecode Crawl4AI
crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy
CVSS 4.0
8.7High
Official description
crawl4ai before 0.9.3 contains an arbitrary file write vulnerability in PDFContentScrapingStrategy where the _filter_untrusted_fields function fails to validate untrusted configuration fields. Attackers can submit crafted config bodies with malicious image_save_dir paths to write attacker-controlled bytes into any directory accessible to the service account.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| unclecode | Crawl4AI | 0.9.0 ≤ v < 0.9.3 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-09-15
- Last updated
- 2026-09-15
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
39.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')