CVE-2026-74656

A use-after-free vulnerability exists in the Linux kernel's IPv4 networking stack, specifically in the fib_nhc_update_mtu() function. The root cause is a race condition : this function walks the nexthop exception table under RTNL, but RTNL does not serialize the walk with concurrent PMTU exceptio...

PT-2026-79674

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ip vs in icmp function where an skb is rebased from the outer ICMP packet to the quoted original request before being passed to icmp send. Because IPCBskb-opt...

PT-2026-79661

In the Linux kernel, the following vulnerability has been resolved: ipv4: fix use-after-free in fib nhc update mtu fib nhc update mtu walks the nexthop exception table under RTNL, but RTNL does not serialize this walk with PMTU exception updates. The walk uses rcu dereference protected with a...

Linux Distros Unpatched Vulnerability : CVE-2026-74656

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ipv4: fix use-after-free in fibnhcupdatemtu fibnhcupdatemtu walks the nexthop exception table under RTNL, but RTNL does not serialize this walk with PMTU...

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...

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...

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...

CVE-2026-72860

9router 's POST /api/provider-nodes/validate route is vulnerable to Server-Side Request Forgery (SSRF) due to a flaw in its assertPublicUrl guard (src/shared/utils/ssrfGuard.js). The IPv4-mapped IPv6 denylist regex is unreachable because the WHATWG URL parser canonicalizes such literals to hextet...

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-2026-16839

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information due to an integer underflow in the IPv4 IP-options parser...

CVE-2026-16839

Affected products: IBM AIX 7.2, 7.3, and PowerVM VIOS 4.1. Root cause: integer underflow in the IPv4 IP-options parser, exploitable remotely with no authentication. Impact: CVSS 9.4 (Critical) — high integrity/availability, low confidentiality. Exploitation status: no in-the-wild exploitation or ...

CVE-2026-16839 Vulnerabilities in IBM AIX and PowerVM VIOS

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information due to an integer underflow in the IPv4 IP-options parser...

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...

EUVD-2026-62701

Wekan is open source kanban built with Meteor. From 8.36 until 9.74, the outgoing webhook Integration URL validator in models/integrations.js checked only the literal URL.hostname against regular expressions, so DNS names such as 169-254-169-254.nip.io passed that first-line check. The delivery...

CVE-2026-68558 Wekan: SSRF filter bypass via DNS-resolving hostname in outgoing webhooks (incomplete fix of CVE-2026-53446)

Wekan is open source kanban built with Meteor. From 8.36 until 9.74, the outgoing webhook Integration URL validator in models/integrations.js checked only the literal URL.hostname against regular expressions, so DNS names such as 169-254-169-254.nip.io passed that first-line check. The delivery...

CVE-2026-52829 ZEBRA: IPv4-Mapped Mempool Misbehavior Update Aborts Zebra Address Book

ZEBRA is a Zcash node written entirely in Rust. Prior to 4.5.0, an unauthenticated IPv4 peer can deterministically terminate a synced Zebra node using the default Linux dual-stack listener configuration. The handshake path canonicalized an IPv4-mapped IPv6 PeerSocketAddr such as ::ffff:127.0.0.1 ...

GO-2026-6237 Denial of service via malformed IPv4 packet in github.com/insomniacslk/dhcp

In github.com/insomniacslk/dhcp/dhcpv4/nclient4, BroadcastRawUDPConn.ReadFrom does not validate that the IPv4 payload length is sufficient to hold a UDP header before calculating the DHCP payload length. A frame with an IPv4 total-length field specifying fewer than eight payload bytes results in ...

ip-address: ip-address: Inconsistent IP address parsing leads to Server-Side Request Forgery (SSRF) and trust-boundary bypass

A flaw was found in the ip-address library. This library incorrectly interprets IPv4 address octets with leading zeros as decimal, while standard network parsers interpret them as octal. This inconsistency can cause applications to misclassify network targets, allowing a remote attacker to bypass...