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.
2225 vulnerabilities reference this CWE, most recent first.
GHSA-4HWJ-P7J6-R7JW
Vulnerability from github – Published: 2022-05-02 03:54 – Updated: 2022-05-02 03:54vccleaner in VideoCache 1.9.2 allows local users with Squid proxy user privileges to overwrite arbitrary files via a symlink attack on /var/log/videocache/vccleaner.log.
{
"affected": [],
"aliases": [
"CVE-2009-4454"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-12-29T22:30:00Z",
"severity": "LOW"
},
"details": "vccleaner in VideoCache 1.9.2 allows local users with Squid proxy user privileges to overwrite arbitrary files via a symlink attack on /var/log/videocache/vccleaner.log.",
"id": "GHSA-4hwj-p7j6-r7jw",
"modified": "2022-05-02T03:54:54Z",
"published": "2022-05-02T03:54:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-4454"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/54916"
},
{
"type": "WEB",
"url": "http://archives.neohapsis.com/archives/fulldisclosure/2009-12/0366.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/37733"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/archive/1/508507/100/0/threaded"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4HX2-H4M6-QCHX
Vulnerability from github – Published: 2024-11-28 18:38 – Updated: 2024-11-28 18:38Various problems in obs-scm-bridge allows attackers that create specially crafted git repositories to leak information of cause denial of service.
{
"affected": [],
"aliases": [
"CVE-2024-22038"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-28T10:15:07Z",
"severity": "MODERATE"
},
"details": "Various problems in obs-scm-bridge allows attackers that create specially crafted git repositories to leak information of cause denial of service.",
"id": "GHSA-4hx2-h4m6-qchx",
"modified": "2024-11-28T18:38:36Z",
"published": "2024-11-28T18:38:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22038"
},
{
"type": "WEB",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2024-22038"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-4J4J-2WJQ-MXQJ
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 21:34Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-81963"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:21:00Z",
"severity": "HIGH"
},
"details": "Improper link resolution before file access (\u0027link following\u0027) in Windows Update Stack allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-4j4j-2wjq-mxqj",
"modified": "2026-09-08T21:34:08Z",
"published": "2026-09-08T18:33:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-81963"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81963"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-81963"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4JCH-8QQ5-HQG6
Vulnerability from github – Published: 2023-11-10 03:30 – Updated: 2023-11-12 15:56Improper Input Validation in GitHub repository froxlor/froxlor prior to 2.1.0-beta1.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "froxlor/froxlor"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0-beta1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-6069"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-12T15:56:22Z",
"nvd_published_at": "2023-11-10T01:15:07Z",
"severity": "CRITICAL"
},
"details": "Improper Input Validation in GitHub repository froxlor/froxlor prior to 2.1.0-beta1.",
"id": "GHSA-4jch-8qq5-hqg6",
"modified": "2023-11-12T15:56:22Z",
"published": "2023-11-10T03:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6069"
},
{
"type": "WEB",
"url": "https://github.com/froxlor/froxlor/commit/9e8f32f1e86016733b603b50c31b97f472e8dabc"
},
{
"type": "PACKAGE",
"url": "https://github.com/froxlor/froxlor"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/aac0627e-e59d-476e-9385-edb7ff53758c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Froxlor Improper Input Validation vulnerability"
}
GHSA-4JQP-H8F8-5FH9
Vulnerability from github – Published: 2026-02-21 00:31 – Updated: 2026-02-21 00:31RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of RustDesk Client for Windows. 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 Transfer File feature. By uploading a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-27909.
{
"affected": [],
"aliases": [
"CVE-2026-2490"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-20T23:16:05Z",
"severity": "MODERATE"
},
"details": "RustDesk Client for Windows Transfer File Link Following Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of RustDesk Client for Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Transfer File feature. By uploading a symbolic link, an attacker can abuse the service to read arbitrary files. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-27909.",
"id": "GHSA-4jqp-h8f8-5fh9",
"modified": "2026-02-21T00:31:43Z",
"published": "2026-02-21T00:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2490"
},
{
"type": "WEB",
"url": "https://github.com/rustdesk/rustdesk/pull/13736"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-117"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-4JRJ-98H6-235V
Vulnerability from github – Published: 2024-11-23 03:31 – Updated: 2024-11-23 03:31AVG AntiVirus Free Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of AVG AntiVirus Free. 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 AVG Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-22803.
{
"affected": [],
"aliases": [
"CVE-2024-7235"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-22T22:15:16Z",
"severity": "MODERATE"
},
"details": "AVG AntiVirus Free Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of AVG AntiVirus Free. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the AVG Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.\n. Was ZDI-CAN-22803.",
"id": "GHSA-4jrj-98h6-235v",
"modified": "2024-11-23T03:31:58Z",
"published": "2024-11-23T03:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7235"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1006"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4M32-VGH8-H3GW
Vulnerability from github – Published: 2026-08-11 18:31 – Updated: 2026-08-11 18:31Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-62812"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T17:18:35Z",
"severity": "HIGH"
},
"details": "Improper link resolution before file access (\u0027link following\u0027) in Windows DHCP Server allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-4m32-vgh8-h3gw",
"modified": "2026-08-11T18:31:26Z",
"published": "2026-08-11T18:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62812"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62812"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4M4R-XMFG-WVF5
Vulnerability from github – Published: 2022-05-02 03:14 – Updated: 2022-05-02 03:14winetricks before 20081223 allows local users to overwrite arbitrary files via a symlink attack on the x_showmenu.txt temporary file.
{
"affected": [],
"aliases": [
"CVE-2009-0313"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-01-28T02:30:00Z",
"severity": "MODERATE"
},
"details": "winetricks before 20081223 allows local users to overwrite arbitrary files via a symlink attack on the x_showmenu.txt temporary file.",
"id": "GHSA-4m4r-xmfg-wvf5",
"modified": "2022-05-02T03:14:13Z",
"published": "2022-05-02T03:14:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-0313"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/48320"
},
{
"type": "WEB",
"url": "http://code.google.com/p/winezeug/source/detail?r=253"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00002.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/51619"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/33474"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4P47-3PW8-RC95
Vulnerability from github – Published: 2022-05-17 01:27 – Updated: 2022-05-17 01:27(1) debian/postrm and (2) debian/localepurge.config in localepurge before 0.7.3.2 use tempfile to create a safe temporary file but appends a suffix to the original filename and writes to this new filename, which allows local users to overwrite arbitrary files via a symlink attack on the new filename.
{
"affected": [],
"aliases": [
"CVE-2014-1638"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-01-28T00:55:00Z",
"severity": "LOW"
},
"details": "(1) debian/postrm and (2) debian/localepurge.config in localepurge before 0.7.3.2 use tempfile to create a safe temporary file but appends a suffix to the original filename and writes to this new filename, which allows local users to overwrite arbitrary files via a symlink attack on the new filename.",
"id": "GHSA-4p47-3pw8-rc95",
"modified": "2022-05-17T01:27:07Z",
"published": "2022-05-17T01:27:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-1638"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/90669"
},
{
"type": "WEB",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736359"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/01/22/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2014/01/22/4"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/102379"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/102381"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/65098"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4P7F-6RPF-28MQ
Vulnerability from github – Published: 2026-07-24 15:33 – Updated: 2026-07-24 15:33Improper 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.
{
"affected": [],
"aliases": [
"CVE-2026-12503"
],
"database_specific": {
"cwe_ids": [
"CWE-59"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-24T15:17:10Z",
"severity": "CRITICAL"
},
"details": "Improper Link Resolution (CWE-59)\u00a0in `/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`.",
"id": "GHSA-4p7f-6rpf-28mq",
"modified": "2026-07-24T15:33:01Z",
"published": "2026-07-24T15:33:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12503"
},
{
"type": "WEB",
"url": "https://www.loytec.com/support/product-security/advisories/8520-dibt-cve-20260526-0002-symlink-following-in-chown-chmod-critical"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
Mitigation MIT-48.1
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.