Common Weakness Enumeration
CWE-59
AllowedImproper Link Resolution Before File Access ('Link Following')
Abstraction: Base · Status: Draft
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
2267 vulnerabilities reference this CWE, most recent first.
CVE-2026-13268 (GCVE-0-2026-13268)
Vulnerability from cvelistv5 – Published: 2026-07-29 19:08 – Updated: 2026-07-30 13:41
VLAI
EPSS
VEX
Title
G DATA Total Security Backup Service Link Following Local Privilege Escalation Vulnerability
Summary
G DATA Total Security Backup Service Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of G DATA Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Backup Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-28665.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 13:40 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| G DATA | Total Security |
Affected:
25.5.19.439
|
Date Public
2026-07-15 21:34
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CVE-2026-12567 (GCVE-0-2026-12567)
Vulnerability from cvelistv5 – Published: 2026-06-17 21:51 – Updated: 2026-06-18 12:50
VLAI
EPSS
VEX
Title
Symlink-following arbitrary write via github_workflows module
Summary
The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 12:50 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Black Lantern Security | BBOT |
Affected:
2.0.0 , ≤ <=2.8.4
(custom)
|
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CVE-2026-12503 (GCVE-0-2026-12503)
Vulnerability from cvelistv5 – Published: 2026-07-24 13:57 – Updated: 2026-07-24 14:57
VLAI
EPSS
VEX
Title
Loytec LINX firmware: Improper Link Resolution in /usr/bin/larm_starter
Summary
Improper Link Resolution (CWE-59) in `/usr/bin/larm_starter` in Loytec L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows an authenticated `larmapp` attacker to make `/etc/passwd` writable by the `larmapp` group (leading to root privilege escalation) via a symlink attack on `/etc/lighttpd/ssl/server.pem`.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 14:57 UTC
CWE
- CWE-59 - Improper link resolution before file access ('link following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.loytec.com/support/product-security/a… | vendor-advisory |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Loytec | LIP-ME20xC |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-INX |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-GATE |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-ROC |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-IOB |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-DALI |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-VIS |
Affected:
0 , ≤ 8.4.16
(custom)
|
|
| Loytec | L-PAD |
Affected:
0 , ≤ 8.4.16
(custom)
|
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CVE-2026-12410 (GCVE-0-2026-12410)
Vulnerability from cvelistv5 – Published: 2026-08-05 14:14 – Updated: 2026-08-05 15:32
VLAI
EPSS
VEX
Title
CCleaner local privilege escalation via link following on uninstall
Summary
Link following vulnerability in the Uninstaller component in CCleaner prior to 7.10.1464 on Windows allows a local, low-privileged attacker to escalate privileges to SYSTEM via a symlink/junction created during application uninstallation, which CCleaner follows when deleting the application's data folder with elevated integrity.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 15:32 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Gen Digital | CCleaner |
Affected:
0 , < 7.10.1464
(custom)
|
Date Public
2026-08-05 00:00
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CVE-2026-12391 (GCVE-0-2026-12391)
Vulnerability from cvelistv5 – Published: 2026-07-16 12:17 – Updated: 2026-07-16 13:28
VLAI
EPSS
VEX
Title
ubuntu-pro-client Local Privilege Escalation and Information Disclosure via Symlink Arbitrary File Read in collect-logs
Summary
An insecure symlink following vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools) within the pro collect-logs command framework. The utility creates or utilizes predictable temporary file paths or user-accessible log directories when gathering diagnostic information without verifying the file type or ownership. An unprivileged local attacker can exploit this behavior by creating a symbolic link (symlink) at a predictable destination path pointing to an arbitrary, root-readable file (such as /etc/shadow or private files within /root). When a root administrator or operator subsequently executes the pro collect-logs command, the tool follows the user-controlled symlink, reads the target file, and compresses its contents into the resulting diagnostic support archive. Because the output archive remains readable by the unprivileged user, the attacker can extract and read the sensitive root-owned files, leading to a complete information disclosure of system secrets.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-16 13:20 UTC
CWE
- CWE-59 - Improper link resolution before file access ('link following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://ubuntu.com/security/CVE-2026-12391 | vdb-entry |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Canonical | ubuntu-pro-client (ubuntu-advantage-tools) |
Affected:
0 , < 37.3
(python)
|
|
| Canonical | Ubuntu 26.04 LTS |
Unaffected:
37.2ubuntu0.1
(dpkg)
|
|
| Canonical | Ubuntu 24.04 LTS |
Unaffected:
37.2ubuntu~24.04.1
(dpkg)
|
|
| Canonical | Ubuntu 22.04 LTS |
Unaffected:
37.2ubuntu~22.04.1
(dpkg)
|
|
| Canonical | Ubuntu 20.04 LTS |
Unaffected:
37.1ubuntu0~20.04.1
(dpkg)
|
|
| Canonical | Ubuntu 18.04 LTS |
Unaffected:
37.1ubuntu0~18.04.1
(dpkg)
|
|
| Canonical | Ubuntu 16.04 LTS |
Unaffected:
37.1ubuntu0~16.04.1
(dpkg)
|
Date Public
2026-07-16 12:00
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CVE-2026-12036 (GCVE-0-2026-12036)
Vulnerability from cvelistv5 – Published: 2026-08-13 14:52 – Updated: 2026-08-13 16:05
VLAI
EPSS
VEX
Summary
An improper link following vulnerability was reported in the VantageCoreAddin for Lenovo Vantage and Lenovo Commercial Vantage that could allow a local authenticated user to perform an arbitrary file deletion with elevated privileges.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 16:04 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://support.lenovo.com/us/en/product_security… | vendor-advisory |
Impacted products
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CVE-2026-11940 (GCVE-0-2026-11940)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:04 – Updated: 2026-08-13 00:28
VLAI
EPSS
VEX
Title
tarfile extraction filter bypass allows escaping the destination directory
Summary
tarfile.extractall() with the 'data' or 'tar'
filter could be bypassed by a crafted archive where a hardlink
references a symlink stored at a deeper name than the hardlink itself.
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writes. This was an incomplete fix of CVE-2025-4330.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 17:57 UTC
Assigner
References
10 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.10.21
(python)
Affected: 3.11.0 , < 3.11.16 (python) Affected: 3.12.0 , < 3.12.14 (python) Affected: 3.13.0 , < 3.13.15 (python) Affected: 3.14.0 , < 3.14.7 (python) Affected: 3.15.0a1 , < 3.15.0b4 (python) |
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CVE-2026-11837 (GCVE-0-2026-11837)
Vulnerability from cvelistv5 – Published: 2026-06-10 05:03 – Updated: 2026-09-09 12:04
VLAI
EPSS
VEX
Title
Ansible-collection-ansible-posix: ansible.posix authorized_key: local privilege escalation via symlink-following chown
Summary
A local privilege escalation vulnerability was found in the ansible.posix authorized_key module. The module's keyfile() function uses os.chown() instead of os.lchown() and opens files without O_NOFOLLOW when managing SSH authorized keys. An unprivileged local user can pre-stage symbolic links in their ~/.ssh directory to redirect file ownership changes to arbitrary system paths when an operator runs the authorized_key task as root, leading to local privilege escalation.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 13:57 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-11837 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2487424 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenStack Platform 17.1 |
cpe:/a:redhat:openstack:17.1
|
|
| Red Hat | Red Hat OpenStack Platform 18.0 |
cpe:/a:redhat:openstack:18.0
|
Date Public
2026-06-10 00:00
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CVE-2026-11322 (GCVE-0-2026-11322)
Vulnerability from cvelistv5 – Published: 2026-06-04 21:58 – Updated: 2026-07-14 15:53
VLAI
EPSS
VEX
Title
Hermes WebUI before 0.51.221 Path Traversal via Symlink Workspace Bypass
Summary
Hermes WebUI prior to v0.51.221 contains a path traversal vulnerability that allows attackers to escape the workspace boundary by supplying symlinks that resolve to files or directories outside the designated workspace root. Attackers can exploit the workspace file and listing APIs, which resolve symlink targets without enforcing that the final path remains within the workspace, to read external host files accessible to the server process and disclose sensitive data such as SSH keys, cloud credentials, or application tokens.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-05 20:06 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nesquena/hermes-webui/pull/3398 | issue-tracking |
| https://github.com/nesquena/hermes-webui/commit/7… | patch |
| https://www.vulncheck.com/advisories/hermes-webui… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nesquena | Hermes WebUI |
Affected:
0 , < 0.51.221
(semver)
cpe:2.3:a:get-hermes:hermes_web_ui:*:*:*:*:*:*:*:* |
Date Public
2026-06-02 21:00
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CVE-2026-9804 (GCVE-0-2026-9804)
Vulnerability from cvelistv5 – Published: 2026-05-28 08:15 – Updated: 2026-09-10 12:05
VLAI
EPSS
VEX
Title
Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
Summary
A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-30 01:54 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:27903 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:27913 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:27914 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:27983 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:28002 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-9804 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2482487 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Container Native Virtualization 4.17 |
Unaffected:
1781757410 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.17::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.18 |
Unaffected:
1781928221 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.18::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.19 |
Unaffected:
1781590993 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.19::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.20 |
Unaffected:
1781838712 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.20::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.21 |
Unaffected:
1782012918 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.21::el9 |
|
| Red Hat | Red Hat OpenShift Virtualization 4 |
cpe:/a:redhat:container_native_virtualization:4
|
Date Public
2026-05-28 06:00
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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-132: Symlink Attack
An adversary positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name.
CAPEC-17: Using Malicious Files
An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
CAPEC-35: Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.