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Common Weakness Enumeration

CWE-59

Allowed

Improper Link Resolution Before File Access ('Link Following')

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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.

2264 vulnerabilities reference this CWE, most recent first.

CVE-2026-86469 (GCVE-0-2026-86469)

Vulnerability from cvelistv5 – Published: 2026-09-07 16:00 – Updated: 2026-09-08 12:46
VLAI
Title
Glib2: toctou symlink race in `g_file_create_replace_destination` fallback path
Summary
A flaw was found in GLib2. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION and creating the .goutputstream-XXXXXX temporary file fails, the library unlinks the destination and recreates it without exclusive creation or symlink protection. A local attacker who can write to the destination directory can win that race and redirect the write to another file.
Severity
5.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 12:46 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Date Public
2026-09-07 14:47
Credits
Red Hat would like to thank Aisle Research for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-86424 (GCVE-0-2026-86424)

Vulnerability from cvelistv5 – Published: 2026-09-07 12:53 – Updated: 2026-09-07 12:53
VLAI
Title
ImageMagick before 7.1.2-30 Path Traversal via TOCTOU Symlink Race
Summary
ImageMagick before 7.1.2-30 and 6.9.13-55 contains a time-of-check-time-of-use (TOCTOU) vulnerability in the video decoder that allows attackers to bypass path policy write restrictions via symlink swaps. An attacker can replace a symlink between policy validation (check-time) and the file write operation (use-time) to write to policy-denied locations.
Severity
2 (Low)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
2.5 (Low)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-30 (semver)
Unaffected: 7.1.2-30 (semver)
Create a notification for this product.
ImageMagick ImageMagick Affected: 0 , < 6.9.13-55 (semver)
Unaffected: 6.9.13-55 (semver)
Create a notification for this product.
Date Public
2026-08-23 00:00
Credits
rexpository
Show details on NVD website
To clipboard 

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CVE-2026-86422 (GCVE-0-2026-86422)

Vulnerability from cvelistv5 – Published: 2026-09-07 12:53 – Updated: 2026-09-10 15:04
VLAI
Title
ImageMagick before 7.1.2-30 Path Policy TOCTOU Symlink Race
Summary
ImageMagick before 7.1.2-30 contains a time-of-check-time-of-use vulnerability in path policy enforcement on Windows that allows attackers to bypass read or write restrictions by exploiting symlink race conditions. Attackers can swap symlinks between policy validation and file access to read or write policy-denied files.
Severity
1 (Low)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
3.3 (Low)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 14:19 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: 0 , < 7.1.2-30 (semver)
Unaffected: 7.1.2-30 (semver)
Create a notification for this product.
ImageMagick ImageMagick Affected: 0 , < 6.9.13-55 (semver)
Unaffected: 6.9.13-55 (semver)
Create a notification for this product.
Date Public
2026-08-23 00:00
Credits
gb1dev
Show details on NVD website
To clipboard 

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CVE-2026-85731 (GCVE-0-2026-85731)

Vulnerability from cvelistv5 – Published: 2026-09-16 16:24 – Updated: 2026-09-16 17:25
VLAI
Title
oras-go: Arbitrary file write outside file.Store root via symlink-chain bypass in tar extraction (pushDir)
Summary
oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, content/file.Store extraction of OCI layers marked with io.deis.oras.content.unpack=true can write outside the store working directory. The pushDir path through extractTarDirectory and ensureLinkPath validates symlink targets lexically, resolveRelToBase skips its parent-symlink walk for root-level entries, and writeFile follows a terminal symlink when opening a regular file. A malicious archive can therefore create a symlink chain whose lexical target remains inside the extraction root but whose resolved target is an attacker-selected absolute path, then overwrite that target with a same-named regular-file entry even when AllowPathTraversalOnWrite is false. Pulling an attacker-controlled artifact can create or overwrite any file writable by the process and may lead to code execution. This issue is fixed in version 2.6.2.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 17:24 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')
Assigner
References
Impacted products
Vendor Product Version
oras-project oras-go Affected: < 2.6.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-85583 (GCVE-0-2026-85583)

Vulnerability from cvelistv5 – Published: 2026-09-04 11:29 – Updated: 2026-09-14 19:33
VLAI
Title
SiYuan before v3.8.2 Path Traversal via symlink in file API
Summary
SiYuan versions before v3.8.2 contain a path traversal vulnerability in the reader-accessible file-read endpoint that follows symlinks when opening authorized asset paths. Attackers with reader role can request a logical asset under data/assets/ that is a symlink to a file outside the workspace and receive the target file bytes, bypassing workspace boundary restrictions.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 19:19 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
siyuan-note siyuan Affected: 0 , < 3.8.2 (semver)
Unaffected: 3.8.2 (semver)
    cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-21 00:00
Show details on NVD website
To clipboard 

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CVE-2026-85092 (GCVE-0-2026-85092)

Vulnerability from cvelistv5 – Published: 2026-09-03 01:04 – Updated: 2026-09-03 14:30
VLAI
Title
LiME through 1.12.0 Arbitrary File Overwrite via Symlink Following
Summary
LiME through 1.12.0 fails to validate the disk acquisition output path and does not use O_NOFOLLOW when opening the operator-supplied path parameter, allowing unprivileged local users to overwrite arbitrary root-owned files. An attacker who controls the output directory can create a symbolic link with the expected filename pointing to any root-owned file, and when the acquisition runs in kernel context, LiME follows the link and truncates the target file with the memory acquisition stream.
Severity
5.2 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 13:13 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
jtsylve LiME Affected: 0 , ≤ 1.12.0 (semver)
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
Ali Firas (thesmartshadow)
Show details on NVD website
To clipboard 

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CVE-2026-83999 (GCVE-0-2026-83999)

Vulnerability from cvelistv5 – Published: 2026-09-08 17:14 – Updated: 2026-09-18 20:41
VLAI
Title
Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
Summary
Improper link resolution before file access ('link following') in Windows Resilient File System (ReFS) Deduplication Service allows an authorized attacker to elevate privileges locally.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 13:34 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.9445 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 25H2 Affected: 10.0.26200.0 , < 10.0.26200.9445 (custom)
Create a notification for this product.
Microsoft Windows 11 version 26H1 Affected: 10.0.28000.0 , < 10.0.28000.2954 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.33438 (custom)
Create a notification for this product.
Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.33438 (custom)
Create a notification for this product.
Date Public
2026-09-08 14:00
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CVE-2026-82455 (GCVE-0-2026-82455)

Vulnerability from cvelistv5 – Published: 2026-08-29 13:47 – Updated: 2026-09-11 11:26
VLAI

The RubyGems maintainers determined that the reported symlink-following behavior during gem extraction is not a security vulnerability, so no vulnerability exists for this record to describe.

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CVE-2026-82252 (GCVE-0-2026-82252)

Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-08-29 13:38
VLAI
Title
gitoxide before 0.52.1 Repository Boundary Violation via symlinked .gitmodules
Summary
gitoxide before 0.52.1 follows symlinks when reading the worktree .gitmodules file, allowing attackers to inject out-of-repository bytes into submodule metadata. Attackers can create a malicious repository with a symlinked .gitmodules pointing outside the repository tree, causing gitoxide to parse arbitrary external files as submodule configuration and expose attacker-controlled name, path, and url values.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 14:04 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
GitoxideLabs gitoxide Affected: 0 , < 0.52.1 (semver)
Unaffected: 0.52.1 (semver)
Create a notification for this product.
GitoxideLabs gitoxide Affected: 0 , < 0.82.0 (semver)
Unaffected: 0.82.0 (semver)
Create a notification for this product.
Date Public
2026-04-25 00:00
Credits
N0zoM1z0
Show details on NVD website
To clipboard 

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CVE-2026-82248 (GCVE-0-2026-82248)

Vulnerability from cvelistv5 – Published: 2026-08-28 10:49 – Updated: 2026-08-31 18:32
VLAI
Title
gitoxide before 0.33.0 Path Traversal via symlink following
Summary
gix-worktree-state before 0.33.0 (part of gitoxide) allows writing files outside the worktree on Windows. gix_worktree_state::checkout() follows an existing terminal symlink during non-exclusive (incremental) materialization (destination_is_initially_empty: false) when core.symlinks is true. If a symlink entry (mode 120000) is first checked out at a path P pointing outside the worktree, a subsequent incremental checkout of a regular-file entry (mode 100644) at the same path follows the existing reparse point and writes the blob content through the link, overwriting files outside the worktree.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 18:32 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version
GitoxideLabs gitoxide Affected: 0 , < 0.33.0 (semver)
Unaffected: 0.33.0 (semver)
Create a notification for this product.
GitoxideLabs gitoxide Affected: 0 , < 0.55.0 (semver)
Unaffected: 0.55.0 (semver)
Create a notification for this product.
GitoxideLabs gitoxide Affected: 0 , < 0.49.0 (semver)
Unaffected: 0.49.0 (semver)
Create a notification for this product.
GitoxideLabs gitoxide Affected: 0 , < 0.86.0 (semver)
Unaffected: 0.86.0 (semver)
Create a notification for this product.
Date Public
2026-08-02 00:00
Credits
scadastrangelove
Show details on NVD website
To clipboard 

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                  "versionEndExcluding": "0.86.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "scadastrangelove"
        }
      ],
      "datePublic": "2026-08-02T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "gix-worktree-state before 0.33.0 (part of gitoxide) allows writing files outside the worktree on Windows. gix_worktree_state::checkout() follows an existing terminal symlink during non-exclusive (incremental) materialization (destination_is_initially_empty: false) when core.symlinks is true. If a symlink entry (mode 120000) is first checked out at a path P pointing outside the worktree, a subsequent incremental checkout of a regular-file entry (mode 100644) at the same path follows the existing reparse point and writes the blob content through the link, overwriting files outside the worktree."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-28T10:49:34.165Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-pmm9-4h7q-24c8)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmm9-4h7q-24c8"
        },
        {
          "name": "VulnCheck Advisory: gitoxide before 0.33.0 Path Traversal via symlink following",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/gitoxide-before-0.33.0-path-traversal-via-symlink-following"
        }
      ],
      "title": "gitoxide before 0.33.0 Path Traversal via symlink following",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-82248",
    "datePublished": "2026-08-28T10:49:34.165Z",
    "dateReserved": "2026-08-28T10:37:51.949Z",
    "dateUpdated": "2026-08-31T18:32:54.127Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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.

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