Common Weakness Enumeration

CWE-61

Allowed

UNIX Symbolic Link (Symlink) Following

Abstraction: Compound · Status: Incomplete

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.

294 vulnerabilities reference this CWE, most recent first.

CVE-2026-55686 (GCVE-0-2026-55686)

Vulnerability from cvelistv5 – Published: 2026-06-26 16:30 – Updated: 2026-06-26 18:31
VLAI
Title
Podman: WORKDIR symlink traversal vulnerability
Summary
Podman is a tool for managing OCI containers and pods. From 3.0.0 until 5.7.1, running a malicious container image where the WORKDIR path contains a symlink can create a directory or modify ownership on the host filesystem. Modified ownership is less likely to happen as that requires help from an untrusted/malicious process that mutates the host filesystem tree during dereferencing of the WORKDIR path, to trigger a race condition. This vulnerability is fixed in 5.7.1.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 18:31 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
References
Impacted products
Vendor Product Version
podman-container-tools podman Affected: >= 3.0.0, < 5.7.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-55447 (GCVE-0-2026-55447)

Vulnerability from cvelistv5 – Published: 2026-06-23 16:21 – Updated: 2026-06-24 15:47
VLAI
Title
Langflow: BaseFileComponent-based nodes arbitrary file read with RCE exploit
Summary
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, by controlling a files that are digested into the RAG, an attacker can direct the node to read any file on the file-system by absolute path. All components based on BaseFileComponent are vulnerable to the vulnerability. This includes Docling (DoclingInlineComponent), Docling Serve, DoclingRemoteComponent), Read File (FileComponent), NVIDIA Retriever Extraction (NvidiaIngestComponent), Video File (VideoFileComponent), and Unstructured API (UnstructuredComponent). This vulnerability is fixed in 1.9.2.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 03:56 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
References
Impacted products
Vendor Product Version
langflow-ai langflow Affected: < 1.9.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-55168 (GCVE-0-2026-55168)

Vulnerability from cvelistv5 – Published: 2026-08-21 20:31 – Updated: 2026-08-25 17:01
VLAI
Title
Runtipi: Authenticated arbitrary file write via backup restore symlink planting
Summary
Runtipi is a personal homeserver orchestrator. In 4.10.0 and earlier, Runtipi accepts symbolic links from an attacker-controlled backup archive and copies them into live application paths during the backup restore flow. An authenticated attacker can plant user-config/app.env as a symlink to an arbitrary reachable path and then send PUT /api/user-config/demoapp3:_user with attacker-controlled appEnv content. FilesystemService.writeTextFile() follows the planted link, allowing content to be written outside the intended restore and user-config directory boundary with Runtipi process permissions. This issue is fixed in version 4.10.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 17:00 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Impacted products
Vendor Product Version
runtipi runtipi Affected: < 4.10.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-54574 (GCVE-0-2026-54574)

Vulnerability from cvelistv5 – Published: 2026-07-29 16:32 – Updated: 2026-07-29 19:24
VLAI
Title
`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive
Summary
proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 19:13 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Impacted products
Vendor Product Version
termux proot-distro Affected: < 5.1.5
Create a notification for this product.
Show details on NVD website

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CVE-2026-54420 (GCVE-0-2026-54420)

Vulnerability from cvelistv5 – Published: 2026-06-14 03:23 – Updated: 2026-06-16 03:56 X_Known Exploited Vulnerability
VLAI
Summary
LiteSpeed cPanel plugin before 2.4.8 (as distributed in LiteSpeed WHM PlugIn before 5.3.2.0) mishandles symlinks provided by a user with FTP or web shell access on a shared hosting server running CloudLinux/CageFS, as exploited in the wild in May 2026.
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 00:00 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Impacted products
Vendor Product Version
LiteSpeed Technologies cPanel Plugin Affected: 2.3 , < 2.4.8 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-53802 (GCVE-0-2026-53802)

Vulnerability from cvelistv5 – Published: 2026-08-13 14:32 – Updated: 2026-08-14 16:50
VLAI
Title
rsync < 3.5.0 Arbitrary File Read via Symlink Following
Summary
rsync before 3.5.0 contains an arbitrary file read vulnerability that allows attackers to read files accessible to the rsync daemon process by exploiting symlink following in input configuration file handling including --files-from, --password-file, and filter merge files. Attackers can place a symlink at a predictable --files-from or --password-file path, or supply a --files-from path that escapes the daemon module root, to read arbitrary files accessible to the rsync process.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:23 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Impacted products
Vendor Product Version
RsyncProject rsync Affected: 0 , ≤ 3.4.4 (semver)
Unaffected: 3.5.0 (semver)
    cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-12 00:00
Show details on NVD website

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CVE-2026-53489 (GCVE-0-2026-53489)

Vulnerability from cvelistv5 – Published: 2026-07-01 18:10 – Updated: 2026-07-02 14:34
VLAI
Title
containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore
Summary
containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a bug where the CRI plugin restores container.log from a checkpoint image without validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-02 14:34 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
References
Impacted products
Vendor Product Version
containerd containerd Affected: >= 2.1.0, < 2.1.9
Affected: >= 2.2.0, < 2.2.5
Affected: >= 2.3.0, < 2.3.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-52811 (GCVE-0-2026-52811)

Vulnerability from cvelistv5 – Published: 2026-06-24 20:31 – Updated: 2026-06-26 03:55
VLAI
Title
Gogs: UploadRepoFiles writes outside repo working tree via committed parent sym
Summary
Gogs is an open source self-hosted Git service. Prior to 0.14.3, (*Repository).UploadRepoFiles checks for symlinks only on the leaf of the upload target (osx.IsSymlink(targetPath)). The siblings UpdateRepoFile, DeleteRepoFile, and GetDiffPreview use hasSymlinkInPath, which lstats every component — UploadRepoFiles is the lone outlier. An attacker with repo-write access plus a multipart upload whose filename contains a literal backslash (preserved by filepath.Base on Linux, then converted to / by pathx.Clean) redirects the write through a previously-committed directory symlink. iox.CopyFile opens the destination with os.Create (no O_NOFOLLOW), so the kernel follows the parent symlink and writes attacker bytes anywhere the gogs UID can write — ~git/.ssh/authorized_keys → SSH foothold, or <repo>.git/hooks/post-receive → next-push RCE. This vulnerability is fixed in 0.14.3.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 00:00 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Impacted products
Vendor Product Version
gogs gogs Affected: < 0.14.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-49248 (GCVE-0-2026-49248)

Vulnerability from cvelistv5 – Published: 2026-06-18 19:54 – Updated: 2026-06-22 14:41
VLAI
Title
OneDev: RCE through absolute-path symlink following allows low-privileged users to overwrite arbitrary server via TarUtils.untar
Summary
OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar() creates symbolic links verbatim from TAR entry getLinkName() without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to arbitrary server-side locations. This is exploitable by any authenticated user with CI Job write access — no admin interaction required. This is an incomplete fix bypass of CVE-2021-21251 (GHSA-2w6j-wc8c-9mq2): that patch blocked .. path segments but did not address absolute symlink targets. This issue has been fixed in version 15.0.7.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 14:40 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
References
Impacted products
Vendor Product Version
theonedev onedev Affected: < 15.0.7
Create a notification for this product.
Show details on NVD website

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CVE-2026-47766 (GCVE-0-2026-47766)

Vulnerability from cvelistv5 – Published: 2026-08-14 16:16 – Updated: 2026-08-14 16:32
VLAI
Title
crun follows rootfs /dev symlink while creating default devices
Summary
crun is an open source OCI Container Runtime fully written in C. Prior to version 1.28, crun's default device setup opens the container rootfs `/dev` directory without `O_NOFOLLOW`. If an OCI bundle contains `rootfs/dev` as a symlink and the bundle configuration does not mount `/dev`, crun follows that symlink and creates the default device nodes and stdio symlinks at the symlink target outside the container rootfs. In a local rootful crun replay, this created fixed device nodes and symlinks outside the rootfs before crun returned failure. A pre-existing file named `ptmx` in the target directory was also replaced by crun's forced `ptmx -> pts/ptmx` symlink. Version 1.28 fixes the issue.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:32 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
References
Impacted products
Vendor Product Version
containers crun Affected: < 1.28
Create a notification for this product.
Show details on NVD website

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Mitigation
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.

Mitigation MIT-48.1
Architecture and Design

Strategy: Separation of Privilege

  • 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.
CAPEC-27: Leveraging Race Conditions via Symbolic Links

This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.