{"id":"CVE-2026-56259","summary":"Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution","details":"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.","aliases":["GHSA-f989-c77f-r2cq"],"modified":"2026-07-14T04:02:26.381526133Z","published":"2026-07-12T12:06:30.919Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56259.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-200"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56259.json"},{"type":"ADVISORY","url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-f989-c77f-r2cq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56259"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/crawl4ai-llm-credential-exfiltration-via-base-url-and-environment-variable-resolution"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/unclecode/crawl4ai","events":[{"introduced":"0"},{"fixed":"930dc0a61fe65c1e063df05792ffdf971d074674"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.8.8"},{"introduced":"Crawl4AI"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v0.8.7","docker-rebuild-v0.8.7","docker-rebuild-v0.8.6","v0.8.6","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","vr0.6.3","v0.6.3","vr0.6.0","vr0.6.0rc1","v0.5.0.post1","v0.4.243","v0.4.24","v0.3.745","v.3.72","v0.3.6","0.3.4","v0.3.3","v0.3.0","v0.2.77","v0.0.75","v0.2.74","v0.2.73","v0.2.72","v0.2.71","v0.2.7","v0.2.6","v0.2.4","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56259.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}