{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56259","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-19T21:56:09.656Z","datePublished":"2026-07-12T12:06:30.919Z","dateUpdated":"2026-08-18T11:18:00.770Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-18T11:18:00.770Z"},"datePublic":"2026-06-04T00:00:00.000Z","title":"Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Exposure of Sensitive Information to an Unauthorized Actor","cweId":"CWE-200","type":"CWE"}]}],"affected":[{"vendor":"Crawl4AI","product":"Crawl4AI","defaultStatus":"unaffected","packageURL":"pkg:pypi/crawl4ai","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"0.8.8"},{"version":"0.8.8","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*","versionEndExcluding":"0.8.8"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.8,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH"}}],"references":[{"url":"https://github.com/unclecode/crawl4ai/security/advisories/GHSA-f989-c77f-r2cq","name":"GitHub Security Advisory (GHSA-f989-c77f-r2cq)","tags":["vendor-advisory"]},{"name":"VulnCheck Advisory: Crawl4AI - LLM Credential Exfiltration via base_url and Environment Variable Resolution","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/crawl4ai-llm-credential-exfiltration-via-base-url-and-environment-variable-resolution"}],"credits":[{"lang":"en","value":"George Chen","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-14T14:10:22.426459Z","id":"CVE-2026-56259","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-14T14:33:56.069Z"}}]}}