What is CVE-2026-53755?

CVE-2026-53755 is a high-severity vulnerability in Unclecode Crawl4ai, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-06-23.

How severe is CVE-2026-53755?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in Unclecode Crawl4ai

CVE-2026-53755

Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.9, the Docker API server applied its SSRF destination check to the crawl target URL only, not to the proxy address. An unauthenticated request could supply a proxy…

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Unclecode Crawl4ai — versions < 0.8.9

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-53755?: CVE-2026-53755 is a high-severity vulnerability in Unclecode Crawl4ai, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-06-23.
How severe is CVE-2026-53755?: High severity. CVSS v3 base score is 8.6 out of 10.