SUSE CVE-2026-40199

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

CVE-2026-35409 Directus has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in File Import

Directus is a real-time API and App dashboard for managing SQL database content. Prior to 11.16.0, a Server-Side Request Forgery SSRF protection bypass has been identified and fixed in Directus. The IP address validation mechanism used to block requests to local and private networks could be...

CVE-2026-31943 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP

LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.3, isPrivateIP in packages/api/src/auth/domain.ts fails to detect IPv4-mapped IPv6 addresses in their hex-normalized form, allowing any authenticated user to bypass SSRF protection and make the server issue HTTP requests ...

LibreChat 代码问题漏洞

LibreChat is an open-source, free, and highly customizable unified AI dialogue platform. It allows for the aggregation and running of large models from any vendor within a single interface. Prior to LibreChat 0.8.3, there were code vulnerabilities. These vulnerabilities stemmed from the isPrivate...

Mattermost fails to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals e.g., ::ffff:127.0.0.1.. Mattermost...

CLSA-2025-1748002217 golang: Fix of CVE-2024-24790

CVE-2024-24790: fix unexpected behavior from Is methods for IPv4-mapped IPv6 addresses...

golang: net/netip: Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses

A flaw was found in the Go language standard library net/netip. The method Is IsPrivate, IsPublic, etc doesn't behave properly when working with IPv6 mapped to IPv4 addresses. The unexpected behavior can lead to integrity and confidentiality issues, specifically when these methods are used to...

Improper Check for Unusual or Exceptional Conditions

Overview std/net/netip is a Go standard library package std/net/netip Affected versions of this package are vulnerable to Improper Check for Unusual or Exceptional Conditions. Go Vulnerability Report:The various Is methods IsPrivate, IsLoopback, etc did not work as expected for IPv4-mapped IPv6...

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...