High severity · published Oct 12, 2026
CVE-2026-109237
Crawl4AI 0.9.0 before 0.9.4 Untrusted Config Gate Bypass Leaks Environment Variables
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CR
crawl4ai · unclecode
0.9.0 before 0.9.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109237
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109237
vendor-advisory
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-5w5p-vcv6-mm3f
third-party-advisory
https://www.vulncheck.com/advisories/crawl4ai-0.9.0-before-0.9.4-untrusted-config-gate-bypass-leaks-environment-variables
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