Weakness (CWE)
CWE-61: UNIX Symbolic Link (Symlink) Following
The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.
How to prevent it (2 mitigations)
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Implementation
Symbolic link attacks often occur when a program creates a tmp directory that stores files/links. Access to the directory should be restricted to the program as to prevent attackers from manipulating the files.
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Architecture and Design
Follow the principle of least privilege when assigning access rights to entities in a software system.
Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
Source: MITRE CWE-61
219 results · Feed
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High 7.8
WebPros Plesk before 18.0.73.5 and 18.0.74 before 18.0.74.2 on Linux allows remote authenticated users to execute arbit…
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Medium 4.5
Apptainer ineffective application of selinux and apparmor --security options
Apptainer is an open source container platform. In Apptainer versions less than 1.4.5, a container can disable two of the forms of the little used --security option, in particular the forms --security=apparmor:<profile> and --security=selinux:<label> which ot…
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Medium 4.5
Singluarity ineffectively applies of selinux / apparmor LSM process labels
SingularityCE and SingularityPRO are open source container platforms. Prior to SingularityCE 4.3.5 and SingularityPRO 4.1.11 and 4.3.5, if a user relies on LSM restrictions to prevent malicious operations then, under certain circumstances, an attacker can red…
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Medium 4.3
Open OnDemand allowlist bypass using symlinks in directory downloads (TOCTOU)
Open OnDemand is an open-source HPC portal. Prior to versions 4.0.8 and 3.1.16, users can craft a "Time of Check to Time of Use" (TOCTOU) attack when downloading zip files to access files outside of the OOD_ALLOWLIST. This vulnerability impacts sites that use…
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High 7.3CVE-2025-52881 Public exploit
runc: LSM labels can be bypassed with malicious config using dummy procfs files
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7, 1.3.2 and 1.4.0-rc.2, an attacker can trick runc into misdirecting writes to /proc to other procfs files through the use of a racing container with s…
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High 8.4
container escape due to /dev/console mount and related races
runc is a CLI tool for spawning and running containers according to the OCI specification. Versions 1.0.0-rc3 through 1.2.7, 1.3.0-rc.1 through 1.3.2, and 1.4.0-rc.1 through 1.4.0-rc.2, due to insufficient checks when bind-mounting `/dev/pts/$n` to `/dev/cons…
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High 7.3CVE-2025-31133 Public exploit
runc container escape via "masked path" abuse due to mount race conditions
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount…
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High 7.3
youki container escape and denial of service due to arbitrary write gadgets and procfs write redirects
Youki is a container runtime written in Rust. In versions 0.5.6 and below, youki’s apparmor handling performs insufficiently strict write-target validation, and when combined with path substitution during pathname resolution, can allow writes to unintended pr…
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High 7.3
youki container escape via "masked path" abuse due to mount race conditions
Youki is a container runtime written in Rust. In versions 0.5.6 and below, the initial validation of the source /dev/null is insufficient, allowing container escape when youki utilizes bind mounting the container's /dev/null as a file mask. This issue is fixe…
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Medium 6.3
SupportAssist for Home PCs versions 4.8.2 and prior and SupportAssist for Business PCs versions 4.5.3 and prior, contai…
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Medium 4.5
wonderwhy-er DesktopCommanderMCP filesystem.ts isPathAllowed symlink
A security vulnerability has been detected in wonderwhy-er DesktopCommanderMCP up to 0.2.13. This vulnerability affects the function isPathAllowed of the file src/tools/filesystem.ts. The manipulation leads to symlink following. The attack can only be perform…
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Low 2.3
Claude Code: Permission deny bypass is possible through symlink
Claude Code is an agentic coding tool. Versions below 1.0.120 failed to account for symlinks when checking permission deny rules. If a user explicitly denied Claude Code access to a file and Claude Code had access to a symlink pointing to that file, it was po…
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Medium 6.9
SUSE-specific logrotate configuration allows escalation from mail user/group to root
A UNIX Symbolic Link (Symlink) Following vulnerability in logrotate config in the exim package allowed privilege escalation from mail user/group to root.This issue affects Tumbleweed: from ? before 4.98.2-lp156.248.1.
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High 8.7
tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball
tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the destination directory is predictable with a specific tarball. This issue has been patched in version 3.1.1, 2.1.4…
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Medium 6.1
astral-tokio-tar has a path traversal in tar extraction
astral-tokio-tar is a tar archive reading/writing library for async Rust. In versions 0.5.3 and earlier of astral-tokio-tar, tar archives may extract outside of their intended destination directory when using the Entry::unpack_in_raw API. Additionally, the En…
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High 8.1
Symlink Following in txtai leads to arbitrary file write when loading untrusted embedding indices
The txtai framework allows the loading of compressed tar files as embedding indices. While the validate function is intended to prevent path traversal vulnerabilities by ensuring safe filenames, it does not account for symbolic links within the tar file. An a…
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High 8.1
Podman: podman kube play command may overwrite host files
There's a vulnerability in podman where an attacker may use the kube play command to overwrite host files when the kube file container a Secrete or a ConfigMap volume mount and such volume contains a symbolic link to a host file path. In a successful attack, …
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High 8.5
A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of openSUSE Tumbleweed traefik2 allows the trae…
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High 8.7
Airlink's Daemon Symlink Vulnerability
Airlink's Daemon interfaces with Docker and the Panel to provide secure access for controlling instances via the Panel. In version 1.0.0, an attacker with access to the affected container can create symbolic links inside the mounted directory (/app/data). Bec…
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Medium 6.5
n8n has a symlink traversal vulnerability in "Read/Write File" node allows access to restricted files
n8n is a workflow automation platform. Before 1.106.0, a symlink traversal vulnerability was discovered in the Read/Write File node in n8n. While the node attempts to restrict access to sensitive directories and files, it does not properly account for symboli…
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High 7.0
Youki Symlink Following Vulnerability
Youki is a container runtime written in Rust. Prior to version 0.5.5, if /proc and /sys in the rootfs are symbolic links, they can potentially be exploited to gain access to the host root filesystem. This issue has been patched in version 0.5.5.
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High 8.8
Unsafe symlink following in restricted workspace-write sandbox leads to RCE
Using Codex CLI in workspace-write mode inside a malicious context (repo, directory, etc) could lead to arbitrary file overwrite and potentially remote code execution due to symlinks being followed outside the allowed current working directory.
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Medium 5.5
Improper handling of symbolic links in Ivanti Connect Secure before version 22.7R2.8 or 22.8R2, Ivanti Policy Secure be…
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High 7.8
Dell Encryption Admin Utilities versions prior to 11.10.2 contain an Improper Link Resolution vulnerability. A local ma…
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Critical 9.8
daily-backup.sh script in cyrus-imapd allows escalation from cyrus to root
A UNIX Symbolic Link (Symlink) Following vulnerability in openSUSE Tumbleweed cyrus-imapd allows escalation from cyrus to root.This issue affects openSUSE Tumbleweed cyrus-imapd before 3.8.4-2.1.
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High 7.0
iwasm vulnerable to filesystem sandbox escape with symlink when using uvwasi feature
The WebAssembly Micro Runtime's (WAMR) iwasm package is the executable binary built with WAMR VMcore which supports WebAssembly System Interface (WASI) and command line interface. Anyone running WAMR up to and including version 2.2.0 or WAMR built with libc-u…
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High 7.8
RCE In Google Web Designer
Client RCE on macOS and Linux via improper symbolic link resolution in Google Web Designer's preview feature
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Medium 6.2
UNIX symbolic link (Symlink) following issue exists in FutureNet NXR series, VXR series and WXR series routers. Attachi…
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Medium 6.5
Path Traversal in AWS SAM CLI allows file copy to local cache
After completing a build with AWS Serverless Application Model Command Line Interface (SAM CLI) which include symlinks, the content of those symlinks are copied to the cache of the local workspace as regular files or directories. As a result, a user who does …
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Medium 6.5CVE-2025-3047 Public exploit
Path Traversal in AWS SAM CLI allows file copy to build container
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevate…
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High 7.3
zip Vulnerable to Incorrect Path Canonicalization During Archive Extraction, Leading to Arbitrary File Write
`zip` is a zip library for rust which supports reading and writing of simple ZIP files. In the archive extraction routine of affected versions of the `zip` crate starting with version 1.3.0 and prior to version 2.3.0, symbolic links earlier in the archive are…
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Medium 4.4
Arbitrary file overwrite during home directory recovery due to improper symbolic link handling. The following products …
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Medium 5.4
Zoom Apps for macOS - Symbolic Link Following
Symlink following in the installer for some Zoom apps for macOS before version 6.1.5 may allow an authenticated user to conduct an escalation of privilege via network access.
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High 7.0
Dell SupportAssist OS Recovery versions prior to 5.5.13.1 contain a symbolic link attack vulnerability. A low-privilege…
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High 7.7
pwn.college has Symlink LFI in Dojo repos
pwn.college is an education platform to learn about, and practice, core cybersecurity concepts in a hands-on fashion. Incorrect symlink checks on user specified dojos allows for users (admin not required) to perform an LFI from the CTFd container. When a user…
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High 7.1
Vulnerability when creating log files in github.com/golang/glog
When logs are written to a widely-writable directory (the default), an unprivileged attacker may predict a privileged process's log file path and pre-create a symbolic link to a sensitive file in its place. When that privileged process runs, it will follow th…
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High 7.1
Dell SupportAssist for Home PCs versions 4.6.1 and prior and Dell SupportAssist for Business PCs versions 4.5.0 and pri…
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High 8.1
Pagure: generate_archive() follows symbolic links in temporary clones
A vulnerability was found in Pagure. Support of symbolic links during repository archiving of repositories allows the disclosure of local files. This flaw allows a malicious user to take advantage of the Pagure instance.
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High 8.7
Gogs has a Path Traversal in file editing UI
Gogs is an open source self-hosted Git service. A malicious user is able to commit and edit a crafted symlink file to a repository to gain SSH access to the server. The vulnerability is fixed in 0.13.1.
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High 7.8
Dell Inventory Collector Client, versions prior to 12.7.0, contains an Improper Link Resolution Before File Access vuln…