CVE-2026-31431

Base Score: 7.8

Description
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

https://nvd.nist.gov/vuln/detail/CVE-2026-31431

High Vulnerability in the Linux Kernel ("Copy Fail")

Temporary Mitigation
Disable the algif_aead kernel module persistently on all affected systems until a patched kernel is available:

echo "install algif_aead /bin/false" > /etc/modprobe.d/disable-algif.conf
rmmod algif_aead 2>/dev/null || true

This workaround does not affect dm-crypt/LUKS, kTLS, IPsec/XFRM, OpenSSL, GnuTLS, NSS, or SSH. It may affect applications explicitly configured to use the afalg engine or that bind aead/skcipher/hash sockets directly. Exposure can be assessed with lsof | grep AF_ALG.

Security Advisory: Firmware Update Required — Gen 6, Gen 7, and Gen 8 Firewalls

SonicWall has identified three vulnerabilities (CVEs) affecting Gen 6, Gen 7, and Gen 8 firewall platforms. These vulnerabilities require immediate firmware updates to maintain security posture. One CVE is rated High severity and two are rated medium severity.

Applies To
Gen 8 firewalls — patch available in firmware 8.2.0-8009
Gen 7 firewalls — patch available in firmware 7.3.2-7010
Gen 6 firewalls — patched firmware posted to MySonicWall on April 29, 2026

https://www.sonicwall.com/support/notices/security-advisory-firmware-update-required-gen-6-gen-7-and-gen-8-firewalls/kA1VN000001F03x0AC


Advisory ID SNWLID-2026-0004
First Published 2026-04-29
Workaround true

CVE CVE-2026-0204, CVE-2026-0205, CVE-2026-0206
CWE CWE-1390, CWE-35, CWE-121

CVSS v3 8.0

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0004

Pi-hole
Local privilege escalation via config-controlled path in root-executed service hooks

Package Pi-hole Core and FTL
Affected versions
>= v6.0
Patched versions
Core >=v6.4.2 FTL >=v6.6.1

https://github.com/pi-hole/pi-hole/security/advisories/GHSA-6w8x-p785-6pm4

CNA: Apache Software Foundation

CVSS 9.8

Published: 2026-05-01
Updated: 2026-05-01
Title: Apache MINA: AbstractIoBuffer.resolveClass() null-clazz Branch Skips acceptMatchers Filter — Full Object Deserialization RCE (take 2)

Description
The fix for CVE-2026-41635 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description: Apache MINA's AbstractIoBuffer.resolveClass() contains two branches, one of them (for static classes or primitive types) does not check the class at all, bypassing the classname allowlist and allowing arbitrary code to be executed. The fix checks if the class is present in the accepted class filter before calling Class.forName(). Affected versions are Apache MINA 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade.

https://www.cve.org/CVERecord?id=CVE-2026-42779

https://lists.apache.org/thread/fhlx5k91hrkgyzh7yk1nghrn3k27gxy0

CVE-2026-0300 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal

CVSS-BT: 9.3

Description
A buffer overflow vulnerability in the User-ID™ Authentication Portal (aka Captive Portal) service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets.
The risk of this issue is greatly reduced if you secure access to the User-ID™ Authentication Portal per the best practice guidelines by restricting access to only trusted internal IP addresses.
Prisma Access, Cloud NGFW and Panorama appliances are not impacted by this vulnerability.

https://security.paloaltonetworks.com/CVE-2026-0300

Product Release Advisory - VMware Tanzu GemFire Management Console 1.4.4

Advisory ID: TNZ-2026-0260
Severity: Critical
Issue Date: 2026-05-05

Synopsis
Updated Spring, Tomcat and other libraries along with latest Prometheus version in OCI image with latest Photon image

VMware Tanzu Data Intelligence
VMware Tanzu Data Services Pack
VMware Tanzu Data Suite
VMware Tanzu Gemfire

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37439

Microsoft - May 2026 Security Updates

https://msrc.microsoft.com/update-guide/releaseNote/2026-May

SAP Security Patch Day - May 2026

https://support.sap.com/en/my-support/knowledge-base/security-notes-news/may-2026.html

Linux Kernel Vulnerability copy.fail - CVE-2026-31431

IR Number FG-IR-26-139
Published Date May 13, 2026

Component CLI
Severity High
Discovered Third-Party Library
Attack Type Authenticated
Known Exploited No
CVSSv3 Score 7.8

Impact Escalation of privilege
CVE ID CVE-2026-31431

https://fortiguard.fortinet.com/psirt/FG-IR-26-139

VMSA-2026-0003: VMware Fusion updates address privilege escalation vulnerability (CVE-2026-41702)

Advisory ID:  VMSA-2026-0003
Advisory Severity: Important
CVSSv3 Range: 7.8
Synopsis: VMware Fusion updates address privilege escalation vulnerability (CVE-2026-41702)
Issue date: 2025-05-14
CVE(s) CVE-2026-41702
 
Impacted Products
VMware Fusion

Introduction
A local privilege escalation vulnerability in VMware Fusion was privately reported to Broadcom. Updates are available to remediate this vulnerability in affected Broadcom products. 

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/37454

Microsoft Exchange Server Spoofing Vulnerability

CVE-2026-42897
Released: May 14, 2026
Impact Spoofing
Max Severity Critical
Weakness CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 7.5

Executive Summary
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
Publicly disclosed No
Exploited Yes
Exploitability assessment Exploitation Detected

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42897