The vulnerability of the ip6_parse_tlv() function in the net/ipv6/exthdrs.c module of the Linux operating system’s IPv6 kernel implementation allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the ip6parsetlv function in the net/ipv6/exthdrs.c module of the Linux operating system’s IPv6 kernel implementation is related to the dereferencing of a pointer with an expired validity period. Exploiting this vulnerability could allow a remote attacker to compromise the...

Linux Kernel IPv6 Multicast Routing Use-After-Free Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of skbuff...

RockyLinux 10 : kernel (RLSA-2026:64775)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:64775 advisory. kernel: can: bcm: add locking for bcmop runtime updates CVE-2025-38004 kernel: ipv6: add NULL checks for idev in SRv6 paths CVE-2026-23442 kernel: udp:...

Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher

Summary The isBlockedIP SSRF guard in Dozzle's webhook notification dispatcher blocks loopback, link-local, multicast, and unspecified addresses but does not recognize IPv6 transition mechanism addresses RFC 3056 6to4, RFC 6052 NAT64, RFC 4380 Teredo that embed arbitrary IPv4 addresses. An...

EUVD-2026-56556

Dozzle: SSRF guard bypass via IPv6 transition addresses 6to4/NAT64/Teredo in webhook notification dispatcher...

GHSA-P2W3-6X73-2F6X Dozzle: SSRF guard bypass via IPv6 transition addresses (6to4/NAT64/Teredo) in webhook notification dispatcher

Summary The isBlockedIP SSRF guard in Dozzle's webhook notification dispatcher blocks loopback, link-local, multicast, and unspecified addresses but does not recognize IPv6 transition mechanism addresses RFC 3056 6to4, RFC 6052 NAT64, RFC 4380 Teredo that embed arbitrary IPv4 addresses. An...

CVE-2026-86735

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...

Server-side Request Forgery (SSRF)

Overview snipe/snipe-it is an asset management system built on Laravel. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the ExternalUrl validation process. An attacker can access internal services or cloud metadata endpoints by configuring webhook URLs with...

CVE-2026-86735 snipe-it before 8.7.0 SSRF via IPv6 transition address bypass

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...

CVE-2026-86735 snipe-it before 8.7.0 SSRF via IPv6 transition address bypass

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...

CVE-2026-86735 snipe-it before 8.7.0 SSRF via IPv6 transition address bypass

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...

EUVD-2026-72871

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...

CVE-2026-86735

snipe-it versions before 8.7.0 contain a server-side request forgery (SSRF) vulnerability in the ExternalUrl validation rule , which fails to detect IPv6 transition addresses (NAT64, 6to4, or Teredo) that encode private IPv4 targets. An attacker with super-admin privileges can configure webhook U...

kernel: ipv6: sit: reload inner IPv6 header after GSO offloads

A flaw was found in the Linux kernel's Simple Internet Transition SIT tunnel driver for IPv6. When processing network traffic with Generic Segmentation Offload GSO enabled, the driver may use a stale pointer to the inner IPv6 header after the socket buffer skb head has been reallocated. This can...

kernel: ipv6: anycast: insert aca into global hash under idev->lock

A flaw was found in the Linux kernel, specifically within its management of IPv6 anycast addresses. A timing issue, known as a race condition, can occur when these addresses are added and removed from a system's internal list. This can lead to the system attempting to access memory that has alrea...

kernel: ipv6: mcast: Fix use-after-free when processing MLD queries

A flaw was found in the Linux kernel's IPv6 multicast mcast component. When processing Multicast Listener Discovery MLD queries, a pointer to the multicast group address is not correctly reloaded after certain packet manipulations. This can lead to a use-after-free vulnerability, potentially...

kernel: ipv6: add NULL checks for idev in SRv6 paths

A flaw was found in the Linux kernel. Missing null pointer checks in the IPv6 Segment Routing SRv6 implementation, specifically within the seg6hmacvalidateskb and ipv6srhrcv functions, can occur when an IPv6 device lacks proper configuration. This oversight may allow an attacker to trigger a null...

kernel: ipv6: prevent possible UaF in addrconf_permanent_addr()

A flaw was found in the Linux kernel's IPv6 networking subsystem. Specifically, a Use-after-Free UaF vulnerability exists within the addrconfpermanentaddr function. This issue arises when the system attempts to access an IPv6 address after it has been freed, which could allow an attacker to cause...

kernel: ipv6: fix possible UAF in icmpv6_rcv()

A flaw was found in the Linux kernel's IPv6 Internet Protocol version 6 implementation. This vulnerability, a Use-After-Free UAF error, occurs due to incorrect caching of network packet addresses before a memory operation. An attacker could potentially exploit this flaw to cause memory corruption...

PT-2026-87132

snipe-it versions before 8.7.0 contain a server-side request forgery vulnerability in the ExternalUrl validation rule that fails to detect IPv6 transition addresses encoding private IPv4 targets. Attackers with super-admin privileges can configure webhook URLs using NAT64, 6to4, or Teredo...