EUVD-2026-64003

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6rulesuppress drops a suppressed route with ip6rtputflags, but leaves res-rt6 pointing at the released rt6info. If no later rule supplies a replacement, fib6rulelookup still sees...

CVE-2026-74581

This vulnerability affects the Linux kernel IPv6 FIB rule suppression path. The function fib6_rule_suppress() releases a suppressed route via ip6_rt_put_flags() but fails to clear res->rt6, leaving it pointing at the already-freed rt6_info structure. If no subsequent rule provides a replacemen...

EUVD-2026-63681

The POST /api/provider-nodes/validate route in 9router takes a caller-supplied baseUrl and issues server-side HTTP requests to it, guarding the destination with assertPublicUrl from src/shared/utils/ssrfGuard.js. That guard compares hostname strings only: it resolves no DNS, does not revalidate...

PT-2026-79402

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6 rule suppress drops a suppressed route with ip6 rt put flags, but leaves res-rt6 pointing at the released rt6 info. If no later rule supplies a replacement, fib6 rule lookup still...

CVE-2026-72860

The POST /api/provider-nodes/validate route in 9router takes a caller-supplied baseUrl and issues server-side HTTP requests to it, guarding the destination with assertPublicUrl from src/shared/utils/ssrfGuard.js. That guard compares hostname strings only: it resolves no DNS, does not revalidate...

CVE-2026-72860 9router Server-Side Request Forgery via /api/provider-nodes/validate Because the IPv4-Mapped IPv6 Denylist Check Is Unreachable

The POST /api/provider-nodes/validate route in 9router takes a caller-supplied baseUrl and issues server-side HTTP requests to it, guarding the destination with assertPublicUrl from src/shared/utils/ssrfGuard.js. That guard compares hostname strings only: it resolves no DNS, does not revalidate...

PT-2026-79218

The POST /api/provider-nodes/validate route in 9router takes a caller-supplied baseUrl and issues server-side HTTP requests to it, guarding the destination with assertPublicUrl from src/shared/utils/ssrfGuard.js. That guard compares hostname strings only: it resolves no DNS, does not revalidate...

CVE-2026-12633

The IPv6 neighbor-discovery code in subsys/net/ip/ipv6nbr.c processes the 6LoWPAN Context Option 6CO, RFC 6775 carried inside ICMPv6 Router Advertisements. In handlera6co the 8-bit contextlen field is taken directly from the packet and was never bounded to the RFC maximum of 128. The function...

CVE-2026-54494

Koel (open-source music streaming, Laravel) prior to 9.7.1 has a full-read SSRF (CWE-918) in its outbound-URL guard App\Helpers\Network::isPublicHost(). PHP's filter_var() with FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6 trans...

CVE-2026-54494 Koel: Full-read SSRF via podcast enclosure URL: isPublicHost() filter_var guard does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6-transition wrappers of internal IPv4

Koel is a free, open-source music streaming solution. Prior to 9.7.1, App\Helpers\Network::isPublicHost uses filtervar with FILTERFLAGNOPRIVRANGE and FILTERFLAGNORESRANGE, which treats NAT64 64:ff9b::/96 and 6to4 2002::/16 wrappers of private, loopback, or link-local IPv4 addresses as public. An...

CVE-2026-12633

CVE-2026-12633 is an out-of-bounds write in the Zephyr RTOS IPv6 neighbor-discovery code (subsys/net/ip/ipv6_nbr.c). The function handle_ra_6co() processes the 6LoWPAN Context Option (RFC 6775) from ICMPv6 Router Advertisements without bounding the 8-bit context_len field to the RFC maximum of 12...

GHSA-WPPF-H75H-6PM6 SearXNG MCP Server: Additional hardened-mode SSRF bypasses

Summary mcp-searxng has a hardened-mode URL-reading feature intended to prevent weburlread from reaching private or internal network resources. PR 79 appears to address one SSRF class: hostnames that resolve to private or internal addresses under hardened mode. I tested PR 79 locally and confirme...

SearXNG MCP Server: Additional hardened-mode SSRF bypasses

Summary mcp-searxng has a hardened-mode URL-reading feature intended to prevent weburlread from reaching private or internal network resources. PR 79 appears to address one SSRF class: hostnames that resolve to private or internal addresses under hardened mode. I tested PR 79 locally and confirme...

CVE-2026-72502

A flaw was found in the Linux kernel. When processing TCP IPv6 packets with a large Maximum Transmission Unit MTU, a specific calculated Maximum Segment Size MSS value can conflict with an internal flag GSOBYFRAGS. A local attacker could send a specially crafted TCP packet that, when processed,...

CVE-2026-72392

A flaw was found in the Linux kernel's IPv6 networking component. A vulnerability exists where a NULL pointer dereference can occur in the fib6walkcontinue function during a multi-batch dump operation. This issue arises when a concurrent table insertion shifts existing entries, causing an incorre...

CVE-2026-72429

A flaw was found in the Linux kernel's IPv6 In-situ Operations, Administration, and Maintenance IOAM subsystem. This vulnerability arises from a type confusion where a dummy network destination entry dstentry is incorrectly handled as a routing information structure rt6info. When this dummy entry...

CVE-2026-72442

A flaw was found in the Linux kernel's netfilter flowtable, which manages network packet processing. The system incorrectly handled IPv6-in-IPv6 IP6IP6 tunneled packets, specifically in how it processed the outer IPv6 header. This could lead to improper network traffic management, potentially...

kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

A flaw was found in the Linux kernel's IPv6 ICMP error generation. A remote attacker could send a specially crafted IPv4 ICMP error packet with a Common Internet Protocol Security Option CIPSO IP option. This could lead to incorrect handling of packet control block data when generating an IPv6 IC...

kernel: netfilter: flowtable: strictly check for maximum number of actions

A flaw was found in the Netfilter flowtable component of the Linux kernel. This vulnerability occurs because the system does not strictly check the maximum number of hardware offload actions for IPv6, allowing it to process more actions than supported. This could potentially lead to system...

CVE-2026-45741

Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, the IsPublicIP function in pkg/gotenberg/outbound.go does not reject the 2002::/16 6to4 prefix, the 64:ff9b::/96 and 64:ff9b:1::/48 NAT64 prefixes, the fec0::/10 deprecated site-local prefix, Teredo, and other...