CVE-2026-43037

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

CVE-2026-43038 ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()

In the Linux kernel, the following vulnerability has been resolved: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach Sashiko AI-review observed: In ip6errgenicmpv6unreach, the skb is an outer IPv4 ICMP error packet where its cb contains an IPv4 inetskbparm. When skb is cloned into skb2 and...

CVE-2026-7536

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsfsessaddbyipaddress of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched...

CVE-2026-7536 Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsfsessaddbyipaddress of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched...

CVE-2026-7536 Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsfsessaddbyipaddress of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched...

CVE-2026-7536

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsfsessaddbyipaddress of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched...

CVE-2026-7536 Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service

A vulnerability was determined in Open5GS up to 2.7.7. This vulnerability affects the function bsfsessaddbyipaddress of the file /nbsf-management/v1/pcfBindings of the component BSF. Executing a manipulation of the argument ipv4Addr can lead to denial of service. The attack can be launched...

n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

Impact In the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in SSRFProtection.validateUrlSync had no IPv6 checks. IPv4-mapped IPv6 addresses such as http://::ffff:169.254.169.254 bypassed the cloud-metadata,...

PT-2026-36822

Name of the Vulnerable Software and Affected Versions n8n-MCP versions 2.47.4 through 2.47.13 Description The synchronous URL validator in SSRFProtection.validateUrlSync lacks IPv6 checks within the SDK embedder path, specifically affecting the N8NDocumentationMCPServer constructor,...

Medium: perl-Net-CIDR-Lite

Issue Overview: Net::CIDR::Lite versions before 0.23 for Perl does not validate IPv6 group count, which may allow IP ACL bypass. packipv6 does not check that uncompressed IPv6 addresses without :: have exactly 8 hex groups. Inputs like "abcd", "1:2:3", or "1:2:3:4:5:6:7" are accepted and produce...

CVE-2026-7422

CVE-2026-7422 affects FreeRTOS-Plus-TCP; insufficient packet validation in IPv4/IPv6 processing (before V4.2.6 and V4.4.1) allows an adjacent attacker to bypass checksum and minimum-size checks by spoofing the Ethernet source MAC to a local endpoint, since loopback-detection skips validation for ...

CVE-2026-7422 MAC Address Validation Bypass in FreeRTOS-Plus-TCP IPv4 and IPv6 Packet Processing

Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to bypass all checksum and minimum-size validation by spoofing the Ethernet source MAC address to match one of the device's own registered endpoints, because the loopback detection...

Linux Distros Unpatched Vulnerability : CVE-2026-31472

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: iptfs: validate inner IPv4 header length in IPTFS payload Add validation of the inner IPv4 packet totlen and ihl fields parsed from decrypted IPTFS payloa...

CVE-2026-31630

In the Linux kernel, the following vulnerability has been resolved: rxrpc: proc: size address buffers for %pISpc output The AFRXRPC procfs helpers format local and remote socket addresses into fixed 50-byte stack buffers with "%pISpc". That is too small for the longest current-tree IPv6-with-port...

CVE-2026-5265

CVE-2026-5265 describes a heap over-read in the ICMP error response generation within OVN’s ovn-controller. The issue occurs when generating ICMP Destination Unreachable or Packet Too Big messages: the handler copies a portion of the original packet into the ICMP error body using the IP header’s ...

USN-8180-5: Linux kernel (IBM) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-5 linux-ibm, linux-ibm-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

SUSE CVE-2026-31531

In the Linux kernel, the following vulnerability has been resolved: ipv4: nexthop: allocate skb dynamically in rtmgetnexthop When querying a nexthop object via RTMGETNEXTHOP, the kernel currently allocates a fixed-size skb using NLMSGGOODSIZE. While sufficient for single nexthops and small...

CVE-2026-31531

In the Linux kernel, the following vulnerability has been resolved: ipv4: nexthop: allocate skb dynamically in rtmgetnexthop When querying a nexthop object via RTMGETNEXTHOP, the kernel currently allocates a fixed-size skb using NLMSGGOODSIZE. While sufficient for single nexthops and small...

CVE-2026-31531

The vulnerability CVE-2026-31531 affects the Linux kernel’s nexthop handling in IPv4 when querying large nexthop groups via RTM_GETNEXTHOP. The fixed issue was a fixed-size NLMSG buffer (NLMSG_GOODSIZE) that could overflow for large groups (e.g., 512 nexthops), causing kernel warnings and potenti...