{"id":80970,"date":"2026-06-23T21:46:34","date_gmt":"2026-06-23T18:16:34","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-53754-crawl4ai-ssrf-filter-bypass-in-docker-server-via-ipv6-transition-forms-nat64-6to4-unspecified-v4-mapped\/"},"modified":"2026-06-23T21:46:34","modified_gmt":"2026-06-23T18:16:34","slug":"cve-2026-53754-crawl4ai-ssrf-filter-bypass-in-docker-server-via-ipv6-transition-forms-nat64-6to4-unspecified-v4-mapped","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-53754-crawl4ai-ssrf-filter-bypass-in-docker-server-via-ipv6-transition-forms-nat64-6to4-unspecified-v4-mapped\/","title":{"rendered":"CVE-2026-53754 &#8211; Crawl4AI: SSRF filter bypass in Docker server via IPv6 transition forms (NAT64 \/ 6to4 \/ unspecified \/ v4-mapped)"},"content":{"rendered":"<p>CVE ID :CVE-2026-53754<\/p>\n<p>  Published : June 23, 2026, 6:16 p.m. | 1\u00a0hour, 27\u00a0minutes ago<\/p>\n<p>  Description :Crawl4AI is an open-source LLM friendly web crawler &amp; scraper. Prior to 0.8.8, the Docker API server&#8217;s SSRF protection (validate_webhook_url \/ validate_url_destination in deploy\/docker\/utils.py) used an explicit IPv4\/IPv6 CIDR blocklist that missed several address families. An attacker could reach internal services and cloud metadata endpoints (e.g. 169.254.169.254) despite the filter by encoding an internal IPv4 address inside an IPv6 transition form, or by using the IPv6 unspecified address. Because the Docker API is unauthenticated by default (jwt_enabled: false), no credentials are required. This vulnerability is fixed in 0.8.8.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-53754 Published : June 23, 2026, 6:16 p.m. | 1\u00a0hour, 27\u00a0minutes ago Description :Crawl4AI is an open-source LLM friendly web crawler &amp; scraper. Prior to 0.8.8, the Docker API server&#8217;s SSRF protection (validate_webhook_url \/ validate_url_destination in deploy\/docker\/utils.py) used an explicit IPv4\/IPv6 CIDR blocklist that missed several address families. An attacker could reach internal &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-80970","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=80970"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80970\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}