PYSEC-2026-1428 Denial of Service Vulnerability in gRPC TCP Server (Posix-compatible platforms)

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms ex. Linux allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Jav...

Important: ansible

Issue Overview: A local privilege escalation vulnerability was found in the ansible.posix authorizedkey module. The module's keyfile function uses os.chown instead of os.lchown and opens files without ONOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic...

PYSEC-2026-2149

Trail of Bits fickling versions up to and including 0.1.10 do not include the Python standard library modules posixsubprocess, site, and atexit in the UNSAFEIMPORTS denylist fickle.py. Because these modules are absent from the denylist, fickling's checksafety function returns LIKELYSAFE with zero...

OpenClaw: Combined POSIX shell options could confuse exec revalidation

Summary Combined POSIX shell options could confuse exec revalidation. In affected versions, a command request using combined shell flags could parse approval-time and execution-time shell options differently. This advisory is scoped to the named feature and configuration. It does not change...

NPM: OpenClaw: Combined POSIX shell options could confuse exec revalidation

NPM: OpenClaw: Combined POSIX shell options could confuse exec revalidation vulnerability discovered by ? in WordPress Npm openclaw versions = 2026.5.7...

GHSA-VXX3-6HC9-7CC3 OpenClaw: Combined POSIX shell options could confuse exec revalidation

Summary Combined POSIX shell options could confuse exec revalidation. In affected versions, a command request using combined shell flags could parse approval-time and execution-time shell options differently. This advisory is scoped to the named feature and configuration. It does not change...

OpenClaw's POSIX node system.run safe-bin allowlist could be widened by shell expansion

Summary On POSIX nodes, OpenClaw's system.run safe-bin checks could approve a command before shell expansion changed how the command was interpreted. A value that appeared to be a safe-bin argument could expand into additional shell words and become a file operand. This issue is limited to paired...

PT-2026-55451

Name of the Vulnerable Software and Affected Versions electerm versions prior to 3.11.11 Description Command injection occurs in the file system operations of the application. The software constructs operating system commands by interpolating untrusted file paths into the rmrf, mv, and cp functio...

FreeBSD-SA-26:44.posixshm

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:44.posixshm Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in POSIX largepage objects Category: core Module: posixshm Announced:...

CVE-2026-53765: Improper Link Resolution Before File Access

Chrome DevTools for agents chrome-devtools-mcp lets your coding agent control and inspect a live Chrome browser. From 0.20.0 until 1.1.0, The chrome-devtools-mcp daemon writes its PID file with fs.writeFileSync to a deterministic runtime path. On typical macOS environments, and on Linux sessions...

Missing Authentication for Critical Function

Overview CoreWCF.UnixDomainSocket is a port of the service side of Windows Communication Foundation WCF to .NET Core. The goal of this project is to enable existing WCF services to move to .NET Core. Affected versions of this package are vulnerable to Missing Authentication for Critical Function...

CVE-2026-49260: Improper Neutralization of Special Elements used in an OS Command

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.5.1, pontedilana/php-weasyprint builds the shell command for WeasyPrint by passing the binary path through escapeshellarg first and then checking the quoted result with isexecutable. On POSIX...

PT-2026-51073

Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1 Description A CoreWCF service hosted on Unix Domain Sockets using PosixIdentity client credentials may accept connections that bypass the application/unixposix stream upgrade befo...

EUVD-2026-37163

OpenClaw: macOS Swift exec allowlist missed combined POSIX inline flags...

GHSA-C226-Q6FX-6J6C OpenClaw: macOS Swift exec allowlist missed combined POSIX inline flags

Summary macOS Swift exec allowlist missed combined POSIX inline flags. In affected versions, a command request using combined POSIX inline-command flags could miss inline-command content expressed through combined flags. This advisory is scoped to the named feature and configuration. It does not...

NPM: OpenClaw: macOS Swift exec allowlist missed combined POSIX inline flags

NPM: OpenClaw: macOS Swift exec allowlist missed combined POSIX inline flags vulnerability discovered by ? in WordPress Npm openclaw versions = 2026.5.5...

GHSA-3PVJ-JV98-QHJQ Chrome DevTools for agents: daemon.pid write follows symlinks in /tmp fallback runtime directory

Summary The chrome-devtools-mcp daemon writes its PID file with fs.writeFileSync to a deterministic runtime path. On typical macOS environments, and on Linux sessions where $XDGRUNTIMEDIR is unset, that runtime path falls back to /tmp/chrome-devtools-mcp-/daemon.pid. Because the write does not us...

PT-2026-50471

Name of the Vulnerable Software and Affected Versions chrome-devtools-mcp affected versions not specified Description On POSIX systems, specifically macOS and Linux sessions where the XDG RUNTIME DIR environment variable is unset, the daemon writes its PID file to a deterministic path in /tmp usi...

CVE-2026-53861

OpenClaw before 2026.5.6 has an allowlist bypass in the macOS Swift exec feature due to missing handling for combined POSIX inline flags. The vulnerability enables attackers to run shell content outside the intended allowlist check by using combined flag forms, with impact depending on operator c...

CVE-2026-53861 OpenClaw < 2026.5.6 - Allowlist Bypass via Combined POSIX Inline Flags on macOS

OpenClaw before 2026.5.6 contains an allowlist bypass vulnerability in the macOS Swift exec feature that misses combined POSIX inline-command flags. Attackers can execute shell content outside the intended allowlist check by using combined flag forms, potentially allowing unauthorized command...