CVE-2026-53754

CVE-2026-53754 affects Crawl4AI prior to version 0.8.8. The Docker API server’s SSRF protection (validate_webhook_url/validate_url_destination) used an explicit IPv4/IPv6 CIDR blocklist that missed several address families, allowing an unauthenticated attacker to reach internal services and cloud...

CVE-2026-53754 Crawl4AI: SSRF filter bypass in Docker server via IPv6 transition forms (NAT64 / 6to4 / unspecified / v4-mapped)

Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.8, the Docker API server's SSRF protection validatewebhookurl / validateurldestination in deploy/docker/utils.py used an explicit IPv4/IPv6 CIDR blocklist that missed several address families. An attacker could reach...

Server-side Request Forgery (SSRF)

Overview pydantic-ai-slim is an Agent Framework / shim to use Pydantic with LLMs, slim package Affected versions of this package are vulnerable to Server-side Request Forgery SSRF due to the blocklist bypass via additional IPv6 transition forms when forcedownload='allow-local' is enabled. An...

CVE-2026-48782

CVE-2026-48782 affects Pydantic AI (versions 1.56.0–1.101.0, 2.0.0b1, 2.0.0b2) where the cloud-metadata blocklist can be bypassed by IPv6 transition forms that previous fixes did not decode. The IPv6 forms bypassing the blocklist can expose cloud IAM short-term credentials when an app uses force_...

Crawl4AI: SSRF filter bypass in Docker server via IPv6 transition forms (NAT64 / 6to4 / unspecified / v4-mapped)

Summary The Docker API server's SSRF protection validatewebhookurl / validateurldestination 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...

GHSA-4QQR-VV2Q-CMR5 Crawl4AI: SSRF filter bypass in Docker server via IPv6 transition forms (NAT64 / 6to4 / unspecified / v4-mapped)

Summary The Docker API server's SSRF protection validatewebhookurl / validateurldestination 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...

PT-2026-50129

Summary When an application using Pydantic AI opts a URL into force download='allow-local' which disables the default block on private/internal IPs and runs on a network that routes the affected IPv6 transition forms NAT64- or ISATAP-configured networks, the cloud-metadata blocklist could be...

Crawl4AI: SSRF filter bypass in Docker server via IPv6 transition forms (NAT64 / 6to4 / unspecified / v4-mapped)

The Docker API server's SSRF protection validatewebhookurl / validateurldestination 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...

Server-side Request Forgery (SSRF)

Overview symfony/symfony is a PHP framework for web applications and a set of reusable PHP components. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF. The NoPrivateNetworkHttpClient is designed to be a security boundary that blocks requests to private/interna...

CVE-2026-44430

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.7, the Registry's HTTP-based namespace verification POST /v0/auth/http, POST /v0.1/auth/http uses safeDialContext internal/api/handlers/v0/auth/http.go:67-110 to refuse dialling...

dns/bind9* -- servers using DNS64 can be crashed by a crafted query

ISC reports: BIND 9 nameservers using the DNS64 IPv6 transition mechanism are vulnerable to a software defect that allows a crafted query to crash the server with a REQUIRE assertion failure. Remote exploitation of this defect can be achieved without extensive effort, resulting in a...

CVE-2026-48736: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient

More info at https://symfony.com/cve-2026-48736...

CVE-2026-48736: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms (6to4, NAT64, Teredo, IPv4-compatible): SSRF Bypass in NoPrivateNetworkHttpClient

More info at https://symfony.com/cve-2026-48736...