Security Bulletin: Nomad vulnerable to arbitrary file read/write on client host through symlink attack

Summary HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability CVE-2026-6959 is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11. Vulnerability Details CVEID:CVE-2026-695...

CVE-2026-41001

A flaw was found in Spring Boot. The ArtemisEmbeddedConfigurationFactory component uses a fixed, static path for the embedded Artemis message broker's data directory when no explicit path is configured. A local attacker on the same host can exploit this by pre-creating this predictable directory ...

CVE-2026-46406

A flaw was found in Claude Code. The /copy command created responses in a predictable, world-readable temporary file without proper isolation or symlink protection. This allowed a local unprivileged user to read sensitive information from a privileged user's Claude response, potentially containin...

CVE-2026-56876

A flaw was found in extract-zip. This vulnerability allows a remote attacker to craft a malicious zip file containing symbolic links that point to locations outside the intended extraction directory. When a user extracts this malicious archive, extract-zip fails to validate the symlink targets,...

Linux Distros Unpatched Vulnerability : CVE-2026-54370

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - acl before version 2.4.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability that allows local attackers to escalate privileges by...

Symlink Attack

Overview libattr is a None Affected versions of this package are vulnerable to Symlink Attack. via the getfattr or setfattr process. An attacker can gain elevated privileges by substituting a symbolic link for a pathname component during directory traversal, causing operations to be redirected to...

UBUNTU-CVE-2026-54370

acl before version 2.4.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat check and subsequent symlink-following operations such as stat, chown,...

CVE-2026-46406 Claude Code: Insecure Temporary File in /copy Command Enables Response Disclosure and Symlink-Based File Write

Claude Code is an agentic coding tool. From 2.1.59 until 2.1.128, the Claude Code /copy command wrote responses to a hardcoded, predictable path /tmp/claude/response.md without UID isolation, randomness, or symlink protection. The file was created world-readable 0644 in a world-traversable...

EUVD-2026-40116

Claude Code is an agentic coding tool. From 2.1.59 until 2.1.128, the Claude Code /copy command wrote responses to a hardcoded, predictable path /tmp/claude/response.md without UID isolation, randomness, or symlink protection. The file was created world-readable 0644 in a world-traversable...

CVE-2026-46406

CVE-2026-46406 affects @anthropic-ai/claude-code versions 2.1.59 through 2.1.128. The /copy command writes responses to a hardcoded, predictable path (/tmp/claude/response.md) with UID isolation, randomness, and symlink protections missing. The file is world-readable (0644) in a world-traversable...

Symlink Attack

Overview acl is a None Affected versions of this package are vulnerable to Symlink Attack. via the libacl functions. An attacker can gain unauthorized access to or modify access control lists by replacing a pathname component with a symbolic link, redirecting ACL read or write operations to...

CVE-2026-54370

acl before version 2.4.0 contains a time-of-check to time-of-use TOCTOU race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat check and subsequent symlink-following operations such as stat, chown,...

EUVD-2026-40068

GNU gzip contains a vulnerability in the gzexe utility related to insecure temporary file handling. When the mktemp utility is not available in the user’s PATH, gzexe falls back to constructing a temporary file path based solely on the process ID PID. This predictable filename is created without...

EUVD-2026-39494

pnpm: Transitive dependency alias path traversal allows project path override via symlink replacement...

Directory Traversal

Overview extract-zip is an unzip a zip file into a directory using 100% javascript Affected versions of this package are vulnerable to Directory Traversal via the extraction process. An attacker can access or modify arbitrary files by crafting a malicious zip archive containing symlinks that poin...

CVE-2026-13218

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...

CVE-2026-13218 Kubevirt: kubevirt: symlink following in writetocachedfile allows host file overwrite from virt-launcher

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...

CVE-2026-13218

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...

EUVD-2026-39536

Cursor is a code editor built for programming with AI. Prior to 3.0, Cursor runs agent terminal commands in a sandbox by default. Before a Write, the agent canonicalizes the target path to confirm it stays inside the workspace, but when canonicalization fails it falls back to the original path an...

CVE-2026-50016

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm allows a transitive dependency alias from registry package metadata to contain path traversal segments. During install, pnpm later uses that alias as a filesystem path when linking dependency nodes. As a result, a registry package can...