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Common Weakness Enumeration

CWE-61

Allowed

UNIX Symbolic Link (Symlink) Following

Abstraction: Compound · Status: Incomplete

API response cwe.mitre.org

The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

301 vulnerabilities reference this CWE, most recent first.

CVE-2026-12958 (GCVE-0-2026-12958)

Vulnerability from cvelistv5 – Published: 2026-06-23 16:03 – Updated: 2026-06-23 17:56
VLAI
Title
Arbitrary file write in Language Servers for AWS
Summary
Missing symlink validation in Language Servers for AWS may allow an arbitrary file write outside of the workspace trust boundary. This may occur when a local user opens a workspace with a maliciously crafted symlink that resolves to a file path outside the workspace trust boundary. To remediate this issue, users should upgrade to version 1.69.0 or higher.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 17:56 UTC
CWE
  • CWE-61 - UNIX symbolic link (symlink) following
Assigner
References
Impacted products
Vendor Product Version
Amazon Web Services Language Servers for AWS Affected: 0 , < 1.69.0 (semver)
Create a notification for this product.
Show details on NVD website
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CVE-2026-12080 (GCVE-0-2026-12080)

Vulnerability from cvelistv5 – Published: 2026-07-20 12:40 – Updated: 2026-08-31 16:53
VLAI
Title
Qemu-kvm: qemu-guest-agent: local privilege escalation via symlink attack in guest-ssh-add-authorized-keys
Summary
A flaw was found in the QEMU Guest Agent (qga). A local unprivileged user can exploit a vulnerability in the guest-ssh-add-authorized-keys command handler by manipulating symbolic links. This can occur either through a deterministic directory-symlink bypass or a Time-of-Check to Time-of-Use (TOCTOU) file-symlink race. Successful exploitation allows the attacker to gain ownership of arbitrary root-owned files or directories, leading to root access. This vulnerability requires an external management layer (e.g., libvirt) to trigger the affected code path.
Severity
7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 18:03 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Date Public
2026-07-09 10:57
Credits
Red Hat would like to thank Valentino Paulon for reporting this issue.
Show details on NVD website
To clipboard 

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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
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
4.6 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
4.2 (Medium)
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 12:24 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
npitre cramfs-tools Affected: 2.0
Affected: 2.1
Affected: 2.2
    cpe:2.3:a:npitre:cramfs-tools:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
nich0las (VulDB User)
Show details on NVD website
To clipboard 

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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
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
7.3 (High)
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
7 (High)
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 13:56 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
IObit Advanced SystemCare Affected: 19
    cpe:2.3:a:iobit:advanced_systemcare:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
usernameone101 (VulDB User)
Show details on NVD website
To clipboard 

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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
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
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
4.4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:46 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
NousResearch hermes-agent Affected: 0.8.0
Unaffected: 0.9.0
Create a notification for this product.
Credits
Yu_Bao (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-6475 (GCVE-0-2026-6475)

Vulnerability from cvelistv5 – Published: 2026-05-14 13:00 – Updated: 2026-05-15 03:56
VLAI
Title
PostgreSQL pg_basebackup and pg_rewind can overwrite unrelated files of origin superuser choice
Summary
Symlink following in PostgreSQL pg_basebackup plain format and in pg_rewind allows an origin superuser to overwrite local files, e.g. /var/lib/postgres/.bashrc, that hijack the operating system account. It will remain the case that starting the server after these commands implicitly trusts the origin superuser, due to features like shared_preload_libraries. Hence, the attack has practical implications only if one takes relevant action between these commands and server start, like moving the files to a different VM or snapshotting the VM. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
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: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 00:00 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
n/a PostgreSQL Affected: 18 , < 18.4 (rpm)
Affected: 17 , < 17.10 (rpm)
Affected: 16 , < 16.14 (rpm)
Affected: 15 , < 15.18 (rpm)
Affected: 0 , < 14.23 (rpm)
Credits
The PostgreSQL project thanks Valery Gubanov, XlabAI Team of Tencent Xuanwu Lab, Atuin Automated Vulnerability Discovery Engine, Zhanpeng Liu (pkugenuine(at)gmail(dot)com), Guannan Wang (wgnbuaa(at)gmail(dot)com), and Guancheng Li (lgcpku(at)gmail(dot)com) for reporting this problem.
Show details on NVD website
To clipboard 

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CVE-2026-5223 (GCVE-0-2026-5223)

Vulnerability from cvelistv5 – Published: 2026-05-25 08:57 – Updated: 2026-05-27 18:35
VLAI
Title
Crates in third party registries can override the cached source of other crates
Summary
Cargo incorrectly handled symlinks inside of crate tarballs downloaded from third-party registries, allowing a malicious crate to override the source code of another crate from the same registry. The severity of the vulnerability is **medium** for users of third-party registries. Users of crates.io are **not affected**, as crates.io forbids uploading crates containing any symlink.
Severity
6.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 14:36 UTC
CWE
  • CWE-61 - UNIX symbolic link (symlink) following
Assigner
References
Impacted products
Vendor Product Version
Rust Project Cargo Affected: 1.0.0 , < 1.96.0 (semver)
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CVE-2026-1386 (GCVE-0-2026-1386)

Vulnerability from cvelistv5 – Published: 2026-01-23 20:25 – Updated: 2026-01-23 20:38
VLAI
Title
Arbitrary Host File Overwrite via Symlink in Firecracker Jailer
Summary
A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pre-created jailer directories to overwrite arbitrary host files via a symlink attack during the initialization copy at jailer startup, if the jailer is executed with root privileges. To mitigate this issue, users should upgrade to version v1.13.2 or 1.14.1 or above.
Severity
6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
6 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-23 20:32 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
AWS Firecracker Unaffected: 1.13.2
Unaffected: 1.14.1
Create a notification for this product.
Show details on NVD website
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CVE-2025-68937 (GCVE-0-2025-68937)

Vulnerability from cvelistv5 – Published: 2025-12-25 23:57 – Updated: 2025-12-26 14:51
VLAI
Summary
Forgejo before 13.0.2 allows attackers to write to unintended files, and possibly obtain server shell access, because of mishandling of out-of-repository symlink destinations for template repositories. This is also fixed for 11 LTS in 11.0.7 and later.
Severity
9.5 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-26 14:40 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Vendor Product Version
Forgejo Forgejo Affected: 12.0.0 , < 13.0.2 (semver)
Affected: 0 , < 11.0.7 (semver)
    cpe:2.3:a:forgejo:forgejo:*:*:*:*:*:*:*:*
    cpe:2.3:a:forgejo:forgejo:*:*:*:*:*:*:*:*
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CVE-2025-67487 (GCVE-0-2025-67487)

Vulnerability from cvelistv5 – Published: 2025-12-09 03:35 – Updated: 2025-12-09 16:02
VLAI
Title
Static Web Server is vulnerable to symbolic link Path Traversal
Summary
Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Versions 2.40.0 and below contain symbolic links (symlinks) which can be used to access files or directories outside the intended web root folder. SWS generally does not prevent symlinks from escaping the web server’s root directory. Therefore, if a malicious actor gains access to the web server’s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing. This issue is fixed in version 2.40.1.
Severity
5.5 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-09 14:23 UTC
CWE
  • CWE-61 - UNIX Symbolic Link (Symlink) Following
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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            "url": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "static-web-server",
          "vendor": "static-web-server",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.40.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Versions 2.40.0 and below contain symbolic links (symlinks) which can be used to access files or directories outside the intended web root folder. SWS generally does not prevent symlinks from escaping the web server\u2019s root directory. Therefore, if a malicious actor gains access to the web server\u2019s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing. This issue is fixed in version 2.40.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-61",
              "description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T03:35:58.257Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm"
        },
        {
          "name": "https://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2"
        }
      ],
      "source": {
        "advisory": "GHSA-459f-x8vq-xjjm",
        "discovery": "UNKNOWN"
      },
      "title": "Static Web Server is vulnerable to symbolic link Path Traversal"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-67487",
    "datePublished": "2025-12-09T03:35:58.257Z",
    "dateReserved": "2025-12-08T18:02:08.846Z",
    "dateUpdated": "2025-12-09T16:02:20.028Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Implementation

Symbolic link attacks often occur when a program creates a tmp directory that stores files/links. Access to the directory should be restricted to the program as to prevent attackers from manipulating the files.

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-27: Leveraging Race Conditions via Symbolic Links

This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.

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