PT-2026-37306

Name of the Vulnerable Software and Affected Versions ssrfcheck versions 1.3.0 and earlier Description ssrfcheck fails to block Server-Side Request Forgery SSRF attacks when a target private IP address is encoded as an IPv4-mapped IPv6 address e.g., 'http://::ffff:127.0.0.1/'. This occurs because...

PT-2026-37221

Twenty is an open source CRM built with NestJS Node.js. In versions 1.18.0 and earlier, the SSRF protection in twenty-server's SecureHttpClientService can be bypassed using IPv4-mapped IPv6 addresses in URL IP literals. Node.js's URL parser normalizes IPv4-mapped IPv6 addresses to compressed hex...

RHCOS 4 : OpenShift Container Platform 4.15.28 (RHSA-2024:5442)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5442 advisory. - golang: net/http: golang: mime/multipart: golang: net/textproto: memory exhaustion in Request.ParseMultipartForm CVE-2023-45290 -...

RHCOS 4 : OpenShift Container Platform 4.14.35 (RHSA-2024:5436)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5436 advisory. - golang: net/http: golang: mime/multipart: golang: net/textproto: memory exhaustion in Request.ParseMultipartForm CVE-2023-45290 -...

Linux Distros Unpatched Vulnerability : CVE-2026-43036

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: use skbheaderpointer for TCPv4 GSO fragoff check Syzbot reported a KMSAN uninit-value warning in gsofeaturescheck called from netifskbfeatures 1...

Linux Distros Unpatched Vulnerability : CVE-2026-43037

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err...

CVE-2026-43036

A flaw was found in the Linux kernel's networking subsystem. An attacker injecting specially crafted packets through PFPACKET paths could trigger an uninitialized value read when processing TCPv4 Generic Segmentation Offload GSO packets. This vulnerability, specifically in the gsofeaturescheck...

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-2026-43037

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

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...

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,...

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...

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,...

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...