ossem-power-up

OSSEM A tool to assess data quality, built on top of the awesome OSSEM project. Mission Answer the question: I want to start hunting ATT&CK techniques, what log sources and events are more suitable? Create transparency on the strengths and weaknesses of your log sources Provide an easy way to...

Nullify

Nullify Secure. Transparent. Nullified. Nullify is an open source, modular data retention, deletion, and lifecycle governance platform. It provides a centralized framework for discovering data, evaluating retention policies, executing controlled lifecycle actions, and maintaining verifiable audit...

backdoorme

backdoorme Build Status Tools like metasploit are great for exploiting computers, but what happens after you've gained access to a computer? Backdoorme answers that question by unleashing a slew of backdoors to establish persistence over long periods of time. Once an SSH connection has been...

zdr

Zero Data Retention ZDR for LLM Providers Last updated: April 2026 A practical guide to keeping your data private when using LLM APIs. Covers zero-retention endpoints, self-hosting, compliance requirements, and data protection patterns for engineers in regulated industries. Table of Contents Whic...

CVE-2026-81921

Concrete CMS 8.5.3 through 9.5.2 enabled the OAuth 2.0 refresh-token grant using the unmodified upstream League grant, which issued new access tokens from a valid refresh token without re-checking the associated account's active status. A user who obtained a refresh token while active could...

cnc-relay

cnc-relay Durante un ejercicio de red team es habitual configurar una infraestructura de relays para separar tu superficie de exposición externa del backend real de comando y control. Algunas de las opciones ligeras más populares son configurar HAProxy o NGINX en infraestructura en la nube...

EUVD-2026-78160

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 Fail to sanitize Team objects returned by the data retention teams endpoint which allows an authenticated user holding only the read-only Data Retention Policy permission to obtain a private team's secret...

CVE-2026-91181

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 Fail to sanitize Team objects returned by the data retention teams endpoint which allows an authenticated user holding only the read-only Data Retention Policy permission to obtain a private team's secret...

ZITADEL: Improper Role Revocation on Granted Projects during Multiple Role Deletions

Summary A bug in how ZITADEL updates permissions when multiple project roles are deleted at the same time can cause some user permissions to be missed. This issue specifically affects User Grants on Granted Projects projects shared between different organizations, potentially allowing users to ke...

CVE-2026-91181 Data Retention Teams Endpoint Leaks Private Team Invite ID

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 Fail to sanitize Team objects returned by the data retention teams endpoint which allows an authenticated user holding only the read-only Data Retention Policy permission to obtain a private team's secret...

CVE-2026-91181

CVE-2026-91181 affects Mattermost versions 11.9.0 and earlier, 11.8.4 and earlier, 11.7.7 and earlier, and 10.11.22 and earlier. The data retention teams endpoint (GET /api/v4/data_retention/policies/{policy_id}/teams) fails to sanitize Team objects, allowing an authenticated user with only the r...

http2-bomb

HTTP/2 Bomb - CVE-2026-49975 A denial-of-service DoS proof of concept targeting HTTP/2 servers. By combining HPACK amplification with stream retention, a single machine with a modest network connection can render a vulnerable server unavailable within seconds. Vulnerability CVE: CVE-2026-49975...

CVE-2026-57497

webtransport-go is an implementation of the WebTransport protocol. Prior to 0.11.1, Session.parseNextCapsule in session.go skips an unknown WebTransport capsule on the HTTP/3 request stream by calling io.ReadAll on the capsule reader, retaining the complete declared capsule body in memory. A...

openssl: QUIC ACK-only packet retention can cause memory exhaustion

A flaw was found in OpenSSL. The QUIC protocol implementation retains metadata for ACK-only packets for the lifetime of a connection, leading to excessive memory consumption. This allows a peer to repeatedly send ack-eliciting packets while not acknowledging ACK-only responses to cause memory...

openssl: QUIC ACK-only packet retention can cause memory exhaustion

A flaw was found in OpenSSL. The QUIC protocol implementation retains metadata for ACK-only packets for the lifetime of a connection, leading to excessive memory consumption. This allows a peer to repeatedly send ack-eliciting packets while not acknowledging ACK-only responses to cause memory...

PT-2026-91738

ZITADEL is an open source identity management platform. Prior to version 4.16.0, a bug in how ZITADEL updates permissions when multiple project roles are deleted at the same time can cause some user permissions to be missed. This issue specifically affects User Grants on Granted Projects projects...

CVE-2026-77753

The Temporary Login Without Password WordPress plugin before 1.9.9 does not prevent a temporary user from creating an Application Password, and does not revoke one when the temporary access expires or is disabled, allowing the recipient of a temporary login to retain working access to the site ov...

CVE-2026-89638 smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions When a file has the setuid or setgid bit set and is written to, the VFS strips those bits and issues a setattr with ATTRKILLSUID/ATTRKILLSGID...

EnableWindowsLogSettings

Yamato Security's Windows Event Log Configuration Guide For DFIR And Threat Hunting English | 日本語 This is yet another guide on properly configuring and monitoring Windows event logs with an emphasis on logging for sigma rules. This is a work in progress, so check back please periodically for...

GHSA-WVM9-9G5J-623F Open WebUI: Users denied by the OAuth role policy can still sign in via token exchange

Summary Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role management that the normal OAuth login callback runs. A user whose provider roles the login callback would refuse, or would demote, could still obtain a working session a...