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.
2189 vulnerabilities reference this CWE, most recent first.
CVE-2026-70622 (GCVE-0-2026-70622)
Vulnerability from cvelistv5 – Published: 2026-08-10 17:35 – Updated: 2026-08-11 02:01 X_Open Source
VLAI
EPSS
VEX
Title
tar-rs 0.4.11 - 0.4.46 Symlink Escape via append_dir_all()
Summary
tar-rs versions 0.4.11 through 0.4.46 contain a symlink escape vulnerability in the Builder::append_dir_all() function that allows attackers to read files outside the intended source root directory by planting symlinks in an attacker-controlled directory. When a privileged process archives an untrusted directory, the function follows symlinks without verifying that resolved targets remain within the source root, causing out-of-bounds files to be included in the archive as regular files and disclosed to the attacker.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 02:01 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gist.github.com/thesmartshadow/e7dac0bb69… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/tar-rs-symli… | third-party-advisory |
Impacted products
Date Public
2026-08-07 00:00
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CVE-2026-70460 (GCVE-0-2026-70460)
Vulnerability from cvelistv5 – Published: 2026-08-13 14:43 – Updated: 2026-08-14 16:51
VLAI
EPSS
VEX
Title
rsync 2.3.3 < 3.5.0 Path Traversal via --partial-dir/--backup-dir Symlink
Summary
rsync 2.3.3 before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to escape the module root by exploiting symlinks within the module file tree when using --partial-dir or --backup-dir options. Attackers with write access to place a symlink under the module root, or who can exploit a pre-existing trusted symlink, can direct file writes to locations outside the intended module root, achieving arbitrary file write relative to the module root parent.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 15:49 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/RsyncProject/rsync/security/ad… | vendor-advisory |
| https://github.com/RsyncProject/rsync/releases/ta… | release-notes |
| https://www.vulncheck.com/advisories/rsync-path-t… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RsyncProject | rsync |
Affected:
2.3.3 , ≤ 3.4.4
(semver)
Unaffected: 3.5.0 (semver) cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:* |
Date Public
2026-08-12 00:00
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CVE-2026-70348 (GCVE-0-2026-70348)
Vulnerability from cvelistv5 – Published: 2026-08-11 17:05 – Updated: 2026-08-31 20:06
VLAI
EPSS
VEX
Title
Windows Management Services Denial of Service Vulnerability
Summary
Improper link resolution before file access ('link following') in Windows Management Services allows an authorized attacker to deny service locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 13:44 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.9168
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.9168
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2704
(custom)
|
Date Public
2026-08-11 14:00
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CVE-2026-67433 (GCVE-0-2026-67433)
Vulnerability from cvelistv5 – Published: 2026-07-29 19:27 – Updated: 2026-07-30 13:07
VLAI
EPSS
VEX
Title
Linuxfabrik monitoring-plugins: Symlink following in logfile legacy database migration
Summary
Linuxfabrik monitoring-plugins provides Python monitoring plugins for Icinga, Nagios, and related monitoring systems. In version 6.0.0, the logfile check legacy database migration moved a predictable path from /tmp with os.rename() and allowed a local user controlling the plugin account to place a symlink that would be followed by sqlite3.connect() during a root-run check.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 13:07 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Linuxfabrik/monitoring-plugins… | x_refsource_CONFIRM |
| https://github.com/Linuxfabrik/monitoring-plugins… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linuxfabrik | monitoring-plugins |
Affected:
6.0.0
|
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CVE-2026-66153 (GCVE-0-2026-66153)
Vulnerability from cvelistv5 – Published: 2026-08-25 20:01 – Updated: 2026-08-27 03:55
VLAI
EPSS
VEX
Summary
The NEService auto-upgrade process insecurely handles temporary files in SonicWall NetExtender Linux client which allows an attacker to manipulate file paths.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 00:00 UTC
CWE
- CWE-59 - Improper link resolution before file access ('link following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SN… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SonicWall | NetExtender |
Affected:
10.3.5 and earlier versions
|
Date Public
2026-08-25 19:51
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CVE-2026-65680 (GCVE-0-2026-65680)
Vulnerability from cvelistv5 – Published: 2026-08-11 17:45 – Updated: 2026-08-31 20:07
VLAI
EPSS
VEX
Title
Microsoft OneDrive for MacOS Elevation of Privilege Vulnerability
Summary
Improper link resolution before file access ('link following') in Microsoft OneDrive allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 03:59 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | OneDrive for MacOS |
Affected:
26.0.0.0 , < 26.095.0519.0003
(custom)
cpe:2.3:a:microsoft:.onedrive_for_macos:*:*:*:*:*:*:*:* |
Date Public
2026-08-11 14:00
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CVE-2026-65647 (GCVE-0-2026-65647)
Vulnerability from cvelistv5 – Published: 2026-08-26 21:21 – Updated: 2026-08-27 17:59
VLAI
EPSS
VEX
Summary
Improper symlink resolution before file access in Plesk allows remote authenticated users to execute arbitrary code as root.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 17:59 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WebPros | Plesk Migrator |
Affected:
0 , < 2.36.0
(semver)
|
|
| WebPros | Plesk Site Import |
Affected:
0 , < 1.12.1
(semver)
|
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CVE-2026-65069 (GCVE-0-2026-65069)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:10 – Updated: 2026-07-23 13:22
VLAI
EPSS
VEX
Title
Data::DisjointSet::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW
Summary
Data::DisjointSet::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
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Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:22 UTC
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::DisjointSet::Shared |
Affected:
0 , < 0.02
(custom)
|
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CVE-2026-65068 (GCVE-0-2026-65068)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:09 – Updated: 2026-07-23 13:18
VLAI
EPSS
VEX
Title
Data::SpatialHash::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW
Summary
Data::SpatialHash::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
The segment is created in sphash.h with open(path, O_RDWR|O_CREAT, 0666). The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:18 UTC
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::SpatialHash::Shared |
Affected:
0 , < 0.02
(custom)
|
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CVE-2026-65067 (GCVE-0-2026-65067)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:09 – Updated: 2026-07-23 13:16
VLAI
EPSS
VEX
Title
Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW
Summary
Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
The segment is created in intern.h with open(path, O_RDWR|O_CREAT, 0666). The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.
A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:15 UTC
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::Intern::Shared |
Affected:
0 , < 0.02
(custom)
|
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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.