TI-2026-71053 Aliases CVE-2026-109237 GHSA-r6v9-2q53-jfjp

Crawl4AI config gate bypass leaks environment variables

LOW 39CWE-502Published 2026-10-12 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · None
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 0.9.4 contains an untrusted-config gate bypass that lets non-admin API clients construct forbidden config objects by wrapping them in dict-type wrappers. An attacker with low privileges can send a crafted LLMConfig to the /config/dump endpoint to read environment variables, including SECRET_KEY and provider keys, which enables forging admin JWTs. The flaw is tracked as CWE-502.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Crawl4AI from 0.9.0 before 0.9.4 contains an untrusted-config gate bypass that allows non-admin API clients to construct forbidden config objects by wrapping them in dict-type wrappers. Attackers can send a laundered LLMConfig with api_token set to an env reference via /config/dump to read SECRET_KEY and provider keys, enabling admin JWT forgery.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00324 25th percentileScored 2026-11-07

Fix Fixed crawl4ai (unclecode): 0.9.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
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

Vendor	Product	Affected versions	Fixed in	Status	Source
unclecode	crawl4ai	0.9.0 to before 0.9.4	0.9.4	Patch available	CNA

crawl4ai Vendorunclecode Affected 0.9.0 to before 0.9.4 Fixed in 0.9.4 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:kidocode:crawl4ai::::::::	—	—	unclecode

cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:* Versions — — ·unclecode

Remediation

Upgrade unclecode crawl4ai to version 0.9.4, which fixes the issue. The sources list no fixed version for any other release.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA crawl4ai (unclecode) Fixed in 0.9.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-10-12
unclecode crawl4ai 0.9.4
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-71054 SSRF in Crawl4AI link preview lets attackers reach internal hostsPriority LOW 39
- TI-2026-71055 Blind SSRF in Crawl4AI robots.txt fetch lets attackers reach internal hostsPriority LOW 36
Show all 3 records →

Timeline

2026-10-12 Threatist record created from CVE-2026-109237
2026-10-12 Alias added: GHSA-r6v9-2q53-jfjp
2026-10-13 Priority changed: MEDIUM → LOW
2026-10-15 CISA SSVC decision points changed

References

Advisory 1

GitHub Security Advisory (GHSA-5w5p-vcv6-mm3f)

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-2026-82638 Untrusted model loading in Crawl4AI via CosineStrategy model_name CVSS 4.0HIGH 7.7

See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences