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.
2190 vulnerabilities reference this CWE, most recent first.
CVE-2026-11837 (GCVE-0-2026-11837)
Vulnerability from cvelistv5 – Published: 2026-06-10 05:03 – Updated: 2026-08-25 12:05
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: 2026-08-24 12:06
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 |
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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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CVE-2026-8784 (GCVE-0-2026-8784)
Vulnerability from cvelistv5 – Published: 2026-05-18 02:30 – Updated: 2026-05-18 12:24 X_Open Source
VLAI
EPSS
VEX
Title
npitre cramfs-tools cramfsck.c change_file_status symlink
Summary
A vulnerability was detected in npitre cramfs-tools up to 2.2. Affected is the function change_file_status of the file cramfsck.c. Performing a manipulation results in symlink following. The attack requires a local approach. The exploit is now public and may be used. The patch is named b4a3a695c9873f824907bd15659f2a6ac7667b4f. It is recommended to apply a patch to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 12:24 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364408 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/364408/cti | signaturepermissions-required |
| https://vuldb.com/submit/811897 | third-party-advisory |
| https://github.com/npitre/cramfs-tools/issues/13 | exploitissue-tracking |
| https://github.com/npitre/cramfs-tools/issues/13#… | issue-tracking |
| https://github.com/npitre/cramfs-tools/commit/b4a… | patch |
| https://github.com/npitre/cramfs-tools/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| npitre | cramfs-tools |
Affected:
2.0
Affected: 2.1 Affected: 2.2 cpe:2.3:a:npitre:cramfs-tools:*:*:*:*:*:*:*:* |
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CVE-2026-8170 (GCVE-0-2026-8170)
Vulnerability from cvelistv5 – Published: 2026-07-20 17:34 – Updated: 2026-07-20 19:21
VLAI
EPSS
VEX
Title
ExtremeXOS Privilege Escalation via Symlink Following in File Utilities
Summary
The mv, cp, and rm file utilities exposed within the ExtremeXOS (EXOS) shell environment fail to safely canonicalize paths and follow symbolic links outside of the intended privilege boundary. An attacker with low-privilege CLI access can create a symbolic link that references a privileged filesystem location and then invoke the affected utilities to read, modify, or replace security-critical files outside of their authorized scope. Under certain conditions, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation is possible remotely by an attacker holding a low-privilege account, or locally via the serial console.
Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 18:26 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Extreme Networks | Switch Engine (EXOS) |
Affected:
0 , < 31.7.4
(custom)
Affected: 32.0.0 , < 32.7.4.15 (custom) Affected: 33.0.0 , < 33.1.100 (custom) Affected: 33.2.0 , < 33.7.1 (custom) |
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CVE-2026-8052 (GCVE-0-2026-8052)
Vulnerability from cvelistv5 – Published: 2026-05-12 19:09 – Updated: 2026-05-12 20:22
VLAI
EPSS
VEX
Title
Nomad's exec2 task driver vulnerable to arbitrary file read/write on client host through symlink attack
Summary
HashiCorp Nomad’s exec2 task driver prior to 0.1.2 is vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-8052) is fixed in version 0.1.2 of the exec2 task driver.
Severity
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 20:22 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Shared library |
Affected:
0.1.0 , < 0.1.2
(semver)
|
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CVE-2026-7832 (GCVE-0-2026-7832)
Vulnerability from cvelistv5 – Published: 2026-05-05 12:15 – Updated: 2026-05-05 14:12 X_Freeware
VLAI
EPSS
VEX
Title
IObit Advanced SystemCare Service ASC.exe symlink
Summary
A security flaw has been discovered in IObit Advanced SystemCare 19. This affects an unknown part of the file ASC.exe of the component Service. The manipulation results in symlink following. Attacking locally is a requirement. This attack is characterized by high complexity. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be used for attacks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 13:56 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/361111 | vdb-entry |
| https://vuldb.com/vuln/361111/cti | signaturepermissions-required |
| https://vuldb.com/submit/797630 | third-party-advisory |
| https://github.com/usernameone101/Writeups/blob/m… | exploitpatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IObit | Advanced SystemCare |
Affected:
19
cpe:2.3:a:iobit:advanced_systemcare:*:*:*:*:*:*:*:* |
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CVE-2026-7397 (GCVE-0-2026-7397)
Vulnerability from cvelistv5 – Published: 2026-04-29 18:00 – Updated: 2026-04-30 12:47 X_Open Source
VLAI
EPSS
VEX
Title
NousResearch hermes-agent file_tools.py _check_sensitive_path symlink
Summary
A security flaw has been discovered in NousResearch hermes-agent 0.8.0. This affects the function _check_sensitive_path of the file tools/file_tools.py. The manipulation results in symlink following. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.9.0 is able to mitigate this issue. The patch is identified as 311dac197145e19e07df68feba2cd55d896a3cd1. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:46 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/360121 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/360121/cti | signaturepermissions-required |
| https://vuldb.com/submit/803270 | third-party-advisory |
| https://github.com/NousResearch/hermes-agent/issu… | exploitissue-tracking |
| https://github.com/NousResearch/hermes-agent/pull/8829 | issue-trackingpatch |
| https://github.com/NousResearch/hermes-agent/comm… | patch |
| https://github.com/NousResearch/hermes-agent/rele… | patch |
| https://github.com/NousResearch/hermes-agent/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NousResearch | hermes-agent |
Affected:
0.8.0
Unaffected: 0.9.0 |
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CVE-2026-7374 (GCVE-0-2026-7374)
Vulnerability from cvelistv5 – Published: 2026-05-26 13:14 – Updated: 2026-08-27 12:04
VLAI
EPSS
VEX
Title
Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink following vulnerability
Summary
A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 00:00 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
13 references
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 1.6.6
(semver)
Affected: 1.7.0 , < 1.7.4 (semver) Affected: 1.8.0 , < 1.8.3 (semver) |
|||
| Red Hat | Red Hat Container Native Virtualization 4.12 |
Unaffected:
1779375376 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.12::el8 |
|
| Red Hat | Red Hat Container Native Virtualization 4.13 |
Unaffected:
1778999881 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.13::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.14 |
Unaffected:
1779321599 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.14::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.15 |
Unaffected:
1778859977 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.15::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.16 |
Unaffected:
1778861274 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.16::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.17 |
Unaffected:
1779174925 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.17::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.18 |
Unaffected:
1778887155 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.18::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.19 |
Unaffected:
1779289071 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.19::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.20 |
Unaffected:
1779288737 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.20::el9 |
|
| Red Hat | Red Hat Container Native Virtualization 4.21 |
Unaffected:
1779420069 , < *
(rpm)
cpe:/a:redhat:container_native_virtualization:4.21::el9 |
Date Public
2026-05-26 12:30
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CVE-2026-6959 (GCVE-0-2026-6959)
Vulnerability from cvelistv5 – Published: 2026-05-12 18:59 – Updated: 2026-05-12 20:16
VLAI
EPSS
VEX
Title
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.
Severity
6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 20:14 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access (Link Following)
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| HashiCorp | Nomad |
Affected:
0.9.0 , < 2.0.1
(semver)
|
|
| HashiCorp | Nomad Enterprise |
Affected:
0.9.0 , < 2.0.1
(semver)
|
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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.