First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups

Authorities in Europe and North America have announced the dismantling of a criminal virtual private network VPN service used by criminal actors to obscure the origins of ransomware attacks, data theft, scanning, and denial-of-service attacks. Codenamed Operation Saffron, the disruption of First...

PT-2026-42827

Name of the Vulnerable Software and Affected Versions authentik versions prior to 2025.12.5 authentik versions 2026.2.0-rc1 through 2026.2.2 Description The 'PATCH /api/v3/core/users/pk/' API allows a caller with change user permissions on a target user to assign arbitrary groups via...

Chromium: CVE-2026-8521 Use after free in Tab Groups

This CVE was assigned by Chrome. Microsoft Edge Chromium-based ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information...

Rapid7 Quarterly Threat Landscape Report: Zero-clicks, geopolitical tensions, and some wins for law enforcement

The first quarter of 2026 reinforced that attackers are moving faster, operating with greater coordination, and exploiting weaknesses before most organizations can respond effectively. From escalating geopolitical tensions to increasingly aggressive ransomware operations, the latest quarterly...

CVE-2026-45250

The setcred(2) system call in the FreeBSD kernel is vulnerable to a stack buffer overflow . The vulnerability occurs because the kernel copies a user-supplied list of supplementary groups into a fixed-size kernel stack buffer without validating its length before checking the caller's privilege le...

EUVD-2026-31252

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250 Stack buffer overflow via setcred(2)

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250 Stack buffer overflow via setcred(2)

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CLSA-2026-1779282813 Fix CVE(s): CVE-2026-42945

SECURITY UPDATE: heap buffer overflow in ngxhttprewritemodule when an unnamed PCRE capture group with '?' in the replacement is followed by another rewrite, if, or set directive - debian/patches/CVE-2026-42945.patch: clear isargs flag at the start of ngxhttpscriptregexendcode in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: scsi: mpi3mr: Fixed the throttlegroups memory leak. Added a missing kfree function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf: Make sure to use pmuctx-pmu for groups. Oliver reported that x86pmudel actually performs an out-of-bound memory access when groupschedin fails and requires a rollback. This issue should be handled through transaction...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vdpasimblk: The number of address spaces and virtqueue groups were set. The commit bda324fd037a “vdpasim: control virtqueue support” added two new fields nas, ngroups to vdpasimdevattr, but we forgot to initialize them for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/fair: This bug prevents dead task groups from regaining access to cfsrq. Kevin is reporting crashes that indicate a use-after-free of cfsrq in the function updateblockedaverages. Initial debugging revealed that cfsrq...

FreeBSD Security Advisory - FreeBSD-SA-26:18.setcred

FreeBSD Security Advisory - The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021588)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021588 advisory. In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup...

FreeBSD -- Stack buffer overflow via setcred(2)

Problem Description: The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied li...

FreeBSD-SA-26:18.setcred

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:18.setcred Security Advisory The FreeBSD Project Topic: Stack buffer overflow via setcred2 Category: core Module: setcred Announced: 2026-05-20 Credits: Ryan...

CVE-2026-34154

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, a vulnerability in the discourse-subscriptions plugin allows users to gain access to subscription-gated groups without completing payment. This issue has been fixed in version...

CVE-2026-34154

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, a vulnerability in the discourse-subscriptions plugin allows users to gain access to subscription-gated groups without completing payment. This issue has been fixed in version...

CVE-2026-34154

CVE-2026-34154 affects Discourse where the vulnerability resides in the discourse-subscriptions plugin. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, users could access subscription-gated groups without completing payment. The issue has been fixed in versions 2026.1.4, ...