What is CVE-2026-56259?

CVE-2026-56259 is a high-severity vulnerability in Crawl4ai, classified under Information Disclosure. CVSS score: 8.2/10. Published 2026-07-12.

How severe is CVE-2026-56259?

High severity. CVSS v3 base score is 8.2 out of 10.

Information disclosure in Crawl4ai

CVE-2026-56259

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…

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

Affected products

Crawl4ai — versions 0, 0.8.8

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56259?: CVE-2026-56259 is a high-severity vulnerability in Crawl4ai, classified under Information Disclosure. CVSS score: 8.2/10. Published 2026-07-12.
How severe is CVE-2026-56259?: High severity. CVSS v3 base score is 8.2 out of 10.