⚡ Weekly Recap: Rogue AI Agents, WeChat Worm, PaperCut Attacks, AI Espionage, and Rootkits

AI keeps showing up in the wrong places. Attackers are using it to speed up exploits, test defenses, and automate more of the job. Some models are also crossing lines on their own. That is not a great combination. The rest of the week is more familiar: old bugs still working, fresh exploit chains...

EUVD-2026-77487

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7 fail to enforce authorization boundaries on the access control policy update endpoint which allows a channel or team administrator to detach a system-assigned ABAC parent policy via a crafted PUT /api/v4/accesscontrolpolicies...

CVE-2026-82920

Mattermost versions 11.9.x ≤ 11.9.0 , 11.8.x ≤ 11.8.4 , and 11.7.x ≤ 11.7.7 fail to enforce authorization boundaries on the ABAC policy update endpoint. A channel or team administrator can detach a system-assigned ABAC parent policy by sending a crafted PUT /api/v4/access_control_policies request...

CVE-2026-90941 novel-plus through 5.3.3 Missing Authorization on the Admin Book Download Endpoint

novel-plus through 5.3.3 contains an authorization bypass vulnerability in the BookController download endpoint that allows authenticated backend accounts to export complete book text including paid chapters. Attackers can supply a bookId and bookName to retrieve all chapter content without VIP o...

CVE-2026-73236 Apache Syncope: Cross-Realm authorization bypass in delegated administration

Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks are based on Realm hierarchy and enforced via prefix matches. Due to incorrect implementation, two sibling Realms whose names begin with the same string cannot be correctly distinguished, resulting i...

CVE-2026-90933

laradashboard through 1.2.2 contains a missing authorization vulnerability in the Local License API endpoints that allows any authenticated user to read, overwrite, and delete premium module license keys. Attackers with low-privileged accounts can access GET /api/admin/licenses/show, POST...

CVE-2026-78330

Incorrect privilege assignment vulnerability in Apache Syncope. When the configured JWKS settings for internal JWT authentication are disclosed at least protocol and key, an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT...

CVE-2026-90933 laradashboard through 1.2.2 Missing Authorization via License API

laradashboard through 1.2.2 contains a missing authorization vulnerability in the Local License API endpoints that allows any authenticated user to read, overwrite, and delete premium module license keys. Attackers with low-privileged accounts can access GET /api/admin/licenses/show, POST...

CVE-2026-90931 LaraDashboard 0.9.0 through 1.2.2 Stored XSS via SVG Upload

LaraDashboard versions 0.9.0 through 1.2.2 fail to sanitize SVG file content during media upload, allowing authenticated users with only the media.create permission to upload malicious SVG files containing script tags. When any user including administrators opens the stored SVG file served inline...

CVE-2026-90929 File Browser 2.5.0 Directory Deletion via Upload Failure Cleanup

File Browser versions = 2.5.0 and = 2.63.23 contain an incorrect authorization flaw in the direct-upload endpoint resourcePostHandler in http/resource.go. Unlike the TUS upload handler, the direct-upload handler does not reject a target that is an existing directory; a POST with ?override=true...

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

A issue was discovered in the Linux kernel before version 6.1.11. In net/netrom/afnetrom.c, there is a use-after-free condition, as “accept” is also allowed for a successfully connected AFNETROM socket. However, for an attacker to exploit this vulnerability, the system must have netrom routing...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: iavf: Fixed error handling related to adminq. iavfallocasqbufs/iavfallocarqbufs allocate memory for VF mailbox using dmaalloccoherent. DMA regions for both ASQ and ARQ are freed in case an error occurs during the configuration...

Astra Linux – Vulnerability in cups

OpenPrinting CUPS is an open-source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user belonging to the lpadmin group could use the cups web interface to modify configurations and insert malicious lines. As a result, the cupsd process, running as root...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NVMe: Fixed the failure in reconnection due to reserved tag allocation. We identified an issue in a production environment while using NVMe over RDMA. The reconnection of adminq failed indefinitely, even when the remote target an...

Astra Linux – Vulnerability in Zabbix

A bug in the code allows an attacker to create a forged zbxsession cookie, which enables them to log in with admin permissions...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cloneprivatemnt: Make sure that the caller has CAPSYSADMIN in the correct user namespaces. What we want is to ensure that clone does not expose something hidden by a mount that we wouldn’t be able to undo. “ wouldn’t be able to...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nvme: fixed the lifetime of the admin requestqueue Namespaces can access the controller’s admin requestqueue, and stale references on the namespaces may exist after tearing down the controller. Ensure that the admin requestqueue ...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A null pointer dereference vulnerability was discovered in the nftdynsetinit function in net/netfilter/nftdynset.c within nftables in the Linux kernel. This issue may allow a local attacker with the CAPNETADMIN user privilege to trigger a denial of service attack...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nvme-tcp: fixed a possible use-after-free issue in the transport errorrecovery process. While nvmetcpsubmitasynceventwork checks the ctrl and queue states before preparing the AER command and scheduling iowork, this check is...

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: ppp: The requirement for CAPNETADMIN in the target netns is necessary for unattached IOCTls. The opening of /dev/ppp is currently allowed for file-fcred-userns, while unattached administrative IOCTls operate on...