Untrusted model loading in Crawl4AI via CosineStrategy model_name
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
Crawl4AI from 0.9.0 before 0.9.5 fails to filter the CosineStrategy model_name field in untrusted Docker API request bodies, so authenticated clients can choose which HuggingFace model the server loads. An attacker can reference a malicious repository with a pickle weight file (CWE-502) to execute Python code under PyTorch below 2.6, or exhaust disk and memory. Exploitation requires low privileges and is rated as proof-of-concept only.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Crawl4AI from 0.9.0 before 0.9.5 fails to filter the CosineStrategy model_name field in untrusted Docker API request bodies, allowing authenticated clients to choose which HuggingFace model the server loads. Attackers can reference a malicious repository with a pickle weight file to execute Python code under PyTorch below 2.6, or exhaust disk and memory.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade unclecode crawl4ai to 0.9.5 or later, which fixes the issue.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA crawl4ai (unclecode) Fixed in 0.9.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
unclecode crawl4ai 0.9.5
5 records Highest priority Priority HIGH 4 HIGH, 1 LOW
Other records, highest priority first
- TI-2026-82637 Denial of service in Crawl4AI via unbounded CrawlerRunConfig delay fieldsPriority HIGH 77
- TI-2026-82640 Blind SSRF in Crawl4AI Docker server via CacheValidator freshness checkPriority HIGH 70
- TI-2026-82636 Crawl4AI ignores certificate errors, enabling interception of crawlsPriority HIGH 69
Timeline
- 2026-10-29 Threatist record created from CVE-2026-119120
- 2026-10-29 Alias added: GHSA-3x32-3792-pvfc
- 2026-10-31 Priority changed: MEDIUM → LOW
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Priority changed: LOW → HIGH
References
More unclecode vulnerabilities
- TI-2026-38760 Crawl4AI: AST Sandbox Escape via gi_frame.f_back Chain - Pre-Auth RCE in Docker API CVSS 3.1CRITICAL 10.0
- TI-2026-40630 Crawl4AI - Authentication Bypass via Hardcoded JWT Signing Key CVSS 4.0CRITICAL 9.3
- TI-2026-82637 Denial of service in Crawl4AI via unbounded CrawlerRunConfig delay fields CVSS 4.0HIGH 8.7
- TI-2026-62075 crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy CVSS 4.0HIGH 8.7
- TI-2026-82640 Blind SSRF in Crawl4AI Docker server via CacheValidator freshness check CVSS 4.0MEDIUM 6.9
- TI-2026-82636 Crawl4AI ignores certificate errors, enabling interception of crawls CVSS 4.0HIGH 8.3
Sources
- CVE-2026-119120 · CVE Program
- CVE-2026-119120 · NVD
- FIRST EPSS
- GHSA-3x32-3792-pvfc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences