Security update for the Linux Kernel

The SUSE Linux Enterprise 11 SP4 kernel was updated to fix various security issues The following security issues were fixed: CVE-2026-23271: perf: Fix perfeventoverflow vs perfremovefromcontext race bsc1260018. CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache bsc1261638...

PT-2026-48323

Name of the Vulnerable Software and Affected Versions Spring for Apache Kafka versions 4.0.0 through 4.0.5 Spring for Apache Kafka versions 3.3.0 through 3.3.15 Spring for Apache Kafka versions 3.2.0 through 3.2.13 Spring for Apache Kafka versions 2.9.0 through 2.9.13 Spring for Apache Kafka...

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-2026-6339

Mattermost versions 11.5.x = 11.5.1, 11.4.x = 11.4.3 fail to validate the X-Requested-With header on the burn-on-read reveal endpoint which allows an authenticated channel member to force the reveal of a burn-on-read message without recipient consent via a crafted Markdown image tag.. Mattermost...

CVE-2026-41309

Open Source Social Network OSSN is open-source social networking software developed in PHP. Versions prior to 9.0 are vulnerable to resource exhaustion. An attacker can upload a specially crafted image with extreme pixel dimensions e.g., $10000 \times 10000$ pixels. While the compressed file size...

Security update for perl-HTTP-Tiny (moderate)

openSUSE Security Update: Security update for perl-HTTP-Tiny Announcement ID: openSUSE-SU-2026:0191-1 Rating: moderate References: 1264992 Cross-References: CVE-2026-7010 Affected Products: openSUSE Backports SLE-15-SP7 An update that fixes one vulnerability is now available. Description:This...

Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection

Summary The serialize function in hono/cookie validates domain and path options against characters that corrupt Set-Cookie header syntax ;, \r, \n, but does not apply the same validation to sameSite and priority. An application that passes user-controlled input into either option may produce a...

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...

RLSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...

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-2025-70101

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

PT-2026-45992

Mercusys AC12G EU V1 router with firmware AC12GEU V1 200909 does not validate the HTTP Host header, enabling DNS rebinding attacks. An external attacker can rebind a domain to the router's internal IP address, extending the CORS wildcard vulnerability Access-Control-Allow-Origin: to...

EUVD-2026-34143

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 does not validate the HTTP Host header, enabling DNS rebinding attacks. An external attacker can rebind a domain to the router's internal IP address, extending the CORS wildcard vulnerability Access-Control-Allow-Origin: to...

EUVD-2025-210055

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

CVE-2025-70101

An out-of-bounds read in the ext4extbinsearchidx function in src/ext4extent.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by supplying a specially crafted ext4 filesystem image. The vulnerability occurs due to insufficient validation of extent header fields before...

RockyLinux 9 : kernel (RLSA-2026:21556)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:21556 advisory. kernel: proc: use the same treatment to check proclseek as ones for procreaditer et.al CVE-2025-38653 kernel: ima: don't clear IMADIGSIG flag when setti...

CLSA-2026-1779968889 Fix of 7 CVEs

SECURITY UPDATE: Authentication Bypass in digest authentication - debian/patches/CVE-2026-43512.patch: reject digest authentication attempts for unknown users in getDigest - CVE-2026-43512 SECURITY UPDATE: Account lockout bypass in LockOutRealm via case variation of user names -...

kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets

A flaw was found in the Linux kernel's netfilter component. This vulnerability occurs because the eui64mt6 function, which processes IPv6 packets, does not properly validate the MAC header for all packets. Specifically, packets with a zero fragment offset could bypass an existing guard, allowing...

ALSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...