CVE-2026-48736

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATESUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowi...

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

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATESUBNETS omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowi...

GHSA-VMFC-9982-2M45 Weblate SSRF: outbound URL guard misses some private ranges

Impact Weblate's VCSRESTRICTPRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions. Patches https://github.com/WeblateOrg/weblate/pull/19768 Resources The issue wa...

CVE-2026-53944

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, when making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address. This vulnerability is fixed in...

PT-2026-52079

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.5.10 Mastodon versions prior to 4.4.17 Mastodon versions prior to 4.3.23 Description When using Ruby versions older than 3.4, the PrivateAddressCheck.private address? function incorrectly returns false for...

CVE-2026-32019

OpenClaw (npm) is affected by CVE-2026-32019 in versions prior to 2026.2.22 due to incomplete IPv4 special-use range validation in isPrivateIpv4(), which can let SSRF bypass protections for RFC-reserved/non-global ranges via web_fetch. Exploitation requires network reachability to those special-u...

Server-side Request Forgery (SSRF)

Overview openclaw is a 🦞 OpenClaw — Personal AI Assistant Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the URL ingestion process. An attacker can access internal or private network resources by crafting a URL containing an ISATAP IPv6 literal that embed...

CVE-2023-28111

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the beta and tests-passed branches, attackers are able to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using a IPv4-mapped IPv6 address. The issue is patched in the...

PT-2023-21570 · Discourse · Discourse

Name of the Vulnerable Software and Affected Versions: Discourse versions prior to 3.1.0.beta3 Description: The issue allows attackers to bypass Discourse's server-side request forgery SSRF protection for private IPv4 addresses by using an IPv4-mapped IPv6 address. Recommendations: For versions...

Mozilla: DoH did not filter IPv4 mapped IP Addresses

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding...