EUVD-2026-38869

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: restrict several matches to inet family This is a partial revert of: commit ab4f21e6fb1c "netfilter: xtables: use NFPROTOUNSPEC in more extensions" to allow ipv4 and ipv6 only. - xtmac - xtowner - xtphysdev...

CVE-2026-56116

A flaw was found in dhcpcd. An unauthenticated attacker on the same network link can exploit a memory leak vulnerability in the IPv6 Router Advertisement route information handling. By repeatedly sending specially crafted Router Advertisements with a zero lifetime, the attacker can cause the syst...

kernel: net: use dst_dev_rcu() in sk_setup_caps()

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv6: fixed a lockdep issue in in6dumpaddrs According to reports from syzbot, we should not use rcudereference when rcureadlock is not held. WARNING: suspicious RCU usage 5.19.0-rc2-syzkaller 0 Not tainted net/ipv6/addrconf.c:517...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: fib6rules: avoided possible NULL dereferencing in fib6ruleaction. syzbot is capable of triggering the following crashes 1, caused by the unsafe use of ip6dstidev. Indeed, ip6dstidev can return NULL, and this value must...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use the appropriate destructor for IPv6. Previously, only the destructor from the TCP request sock in IPv4 was called, even if the subflow was IPv6. It is important to use the correct destructor to avoid memory leaks with...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: icmp6: Fixed the null-ptr-deref of ip6nullentry-rt6iidev in icmp6dev. With some IPv6 Ext Hdr RPL, SRv6, etc., we can send a packet that has the link-local address as src and dst IP, and it will be forwarded to an external IP in t...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: WireGuard: socket: freeskb in send6 when IPv6 is disabled. I received a report of a memory leak: Unreferenced object: 0xffff8881191fc040 size 232 Command: kworker/u17:0, PID: 23193, Jiffies: 4295238848 age: 3464.870 seconds Hex...

net/url: Incorrect parsing of IPv6 host literals in net/url

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid...

CVE-2026-44249

Netty is a network application framework for development of protocol servers and clients. In netty-handler prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can bypass IPv6 subnet rules due to an incorrect masking operation in IpSubnetFilterRule.compareTo. Valid public IP addresses ca...

ALSA-2026:25217 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: scsi: target: iscsi: Fix use-after-free in iscsitdecconnusagecount CVE-2026-23216 kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service CVE-2026-31419 kernel:...

kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err()

A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash denial of...

CVE-2026-49494 Xcitium Client Security / Comodo Internet Security Remote Denial of Service

Xcitium Client Security XCS before 13.8.2.10019 and Comodo Internet Security CIS through 12.3.4.8162 fix expected by 2026 Q3 contain an integer underflow vulnerability in the firewall driver Inspect.sys that allows remote unauthenticated attackers to crash the system by sending a crafted IPv6...

RHEL 9 : osbuild-composer (RHSA-2026:22733)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:22733 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for...

RHEL 9 : image-builder (RHSA-2026:23228)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:23228 advisory. A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood. Security Fixes:...

RockyLinux 10 : skopeo (RLSA-2026:19031)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:19031 advisory. net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 Tenable has extracted the preceding description block directly from the RockyLinux...

SUSE-SU-2026:22016-1 Security update for ovmf

This update for ovmf fixes the following issues: - CVE-2026-25833: mbedtls: buffer overflow in the x509inetptonipv6 function bsc1261476. - CVE-2026-25834: mbedtls: client accepts signature algorithm chosen by server even if not advertised in client hello bsc1261477. - CVE-2026-25835: mbedtls: no...

CC-Tweaked has an SSRF Protection Bypass with NAT64

Summary CC-Tweaked's HTTP API http.request, http.websocket blocks requests to private network ranges to prevent server-side request forgery SSRF. This protection can be bypassed on IPv6-capable servers using NAT64 well-known prefix addresses 64:ff9b::/96. An attacker who can execute Lua code can...

RLSA-2026:19135 Important: opentelemetry-collector security update

Collector with the supported components for a Rocky Enterprise Software Foundation build of OpenTelemetry Security Fixes: net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-25679 google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to...

golang security update

An update is available for golang. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The golang packages provide the Go programming language compiler. Security...