CVE-2026-56259

HIGH

Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution

Title source: cna
STIX 2.1

Description

Crawl4AI before 0.8.8 contains credential exfiltration vulnerabilities in the Docker API server that allow attackers to redirect LLM API calls to attacker-controlled endpoints and read arbitrary environment variables. Attackers can exploit the unauthenticated /md, /llm, and /llm/job endpoints by supplying a malicious base_url parameter and setting api_token to env:VARIABLE_NAME to exfiltrate provider API keys and server secrets including JWT SECRET_KEY for authentication bypass.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-f989-c77f-r2cq)
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-f989-c77f-r2cq
Third Party Advisory third-party-advisory
VulnCheck Advisory: Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution
https://www.vulncheck.com/advisories/crawl4ai-llm-credential-exfiltration-via-base-url-and-environment-variable-resolution

Scores

CVSS v3 8.2
EPSS 0.0031
EPSS Percentile 23.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (3)
Crawl4AI/Crawl4AI < 0.8.8
Crawl4AI/Crawl4AI 0.8.8
kidocode/crawl4ai < 0.8.8
Published Jul 12, 2026
Tracked Since Jul 12, 2026