CVE-2025-61668: @plone/volto Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-m8rj-ppph-mj33
CWE-476 CWE-754
Published
Advisory Summary

CVE-2025-61668 is a HIGH denial of service vulnerability (CWE-476: NULL Pointer Dereference) affecting @plone/volto libraries in the npm ecosystem. The issue involves @plone/volto vulnerable to potential dos by invoking specific url by anonymous user. Remediation is available by upgrading affected packages to version 16.34.1, 17.22.2, 18.27.2, 19.0.0-alpha.6.

CVE-2025-61668 at a Glance

CVE Identifier CVE-2025-61668
GHSA Identifier GHSA-m8rj-ppph-mj33
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product @plone/volto
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2025-61668

To remediate this vulnerability, upgrade all affected @plone/volto dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

@plone/volto fixed: 16.34.1
npm install @plone/volto@16.34.1
@plone/volto fixed: 17.22.2
npm install @plone/volto@17.22.2
@plone/volto fixed: 18.27.2
npm install @plone/volto@18.27.2
@plone/volto fixed: 19.0.0-alpha.6
npm install @plone/volto@19.0.0-alpha.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

npm ls @plone/volto

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-61668, inspect your project dependencies using npm:

npm ls @plone/volto

Analyze the terminal output to locate any version of @plone/volto in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 16.34.1), your application is affected.

Note: The npm ls @plone/volto command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. In @plone/volto, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact When visiting a specific URL, an anonymous user could cause the NodeJS server part of Volto to quit with an error. ### Patches The problem has been patched and the patch has been backported to Volto major versions down until 16. It is advised to upgrade to the latest patch release of your respective current major version: - Volto 16: [16.34.1](https://github.com/plone/volto/releases/tag/16.34.1) - Volto 17: [17.22.2](https://github.com/plone/volto/releases/tag/17.22.2) - Volto 18: [18.27.2](https://github.com/plone/volto/releases/tag/18.27.2) - Volto 19: [19.0.0-alpha6](https://github.com/plone/volto/releases/tag/19.0.0-alpha.6) ### Workarounds Make sure your setup automatically restarts processes that quit with an error. This won't prevent a crash, but it minimises downtime. ### Report The problem was discovered by FHNW, a client of Plone provider kitconcept, who shared it with the Plone Zope Security Team (security@plone.org).

CVE-2025-61668 Affected @plone/volto Versions

4 component(s)
Fixed Versions:
16.34.117.22.218.27.219.0.0-alpha.6
Product / Package Ecosystem Affected Versions Fixed Version
@plone/volto
npm
< 16.34.1
16.34.1
@plone/volto
npm
≥ 17.0.0
< 17.22.2
17.22.2
@plone/volto
npm
≥ 18.0.0
< 18.27.2
18.27.2
@plone/volto
npm
≥ 19.0.0-alpha.1
< 19.0.0-alpha.6
19.0.0-alpha.6

References

Frequently Asked Questions

What is CVE-2025-61668?
CVE-2025-61668 is a security vulnerability in @plone/volto involving @plone/volto vulnerable to potential DoS by invoking specific URL by anonymous user under CWE-476: NULL Pointer Dereference.
Which @plone/volto versions are affected?
Affected versions include releases prior to 16.34.1, 17.22.2, 18.27.2, 19.0.0-alpha.6 across affected packages: @plone/volto.
What version fixes CVE-2025-61668?
Upgrading to 16.34.1, 17.22.2, 18.27.2, 19.0.0-alpha.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is @plone/volto affected?
Yes, @plone/volto is affected in releases prior to 16.34.1, 17.22.2, 18.27.2, 19.0.0-alpha.6. Upgrade your dependency to 16.34.1, 17.22.2, 18.27.2, 19.0.0-alpha.6 or later.
What CWE is associated with CVE-2025-61668?
CVE-2025-61668 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check npm dependencies for CVE-2025-61668?
Run the dependency tree command: 'npm ls @plone/volto'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-m8rj-ppph-mj33",
  "modified" : "2025-10-03T13:22:42Z",
  "published" : "2025-10-01T15:53:43Z",
  "aliases" : [ "CVE-2025-61668" ],
  "summary" : " @plone/volto vulnerable to potential DoS by invoking specific URL by anonymous user ",
  "details" : "### Impact\nWhen visiting a specific URL, an anonymous user could cause the NodeJS server part of Volto to quit with an error.\n\n### Patches\nThe problem has been patched and the patch has been backported to Volto major versions down until 16. It is advised to upgrade to the latest patch release of your respective current major version:\n\n- Volto 16: [16.34.1](https://github.com/plone/volto/releases/tag/16.34.1)\n- Volto 17: [17.22.2](https://github.com/plone/volto/releases/tag/17.22.2)\n- Volto 18: [18.27.2](https://github.com/plone/volto/releases/tag/18.27.2)\n- Volto 19: [19.0.0-alpha6](https://github.com/plone/volto/releases/tag/19.0.0-alpha.6)\n\n### Workarounds\nMake sure your setup automatically restarts processes that quit with an error. This won't prevent a crash, but it minimises downtime.\n\n### Report\nThe problem was discovered by FHNW, a client of Plone provider kitconcept, who shared it with the Plone Zope Security Team (security@plone.org).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@plone/volto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "16.34.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@plone/volto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "17.0.0"
      }, {
        "fixed" : "17.22.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@plone/volto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "18.0.0"
      }, {
        "fixed" : "18.27.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@plone/volto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "19.0.0-alpha.1"
      }, {
        "fixed" : "19.0.0-alpha.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/security/advisories/GHSA-m8rj-ppph-mj33"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-61668"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/pull/7412"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/pull/7413"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/commit/58d9f82d2d50ca9a87edbe16fed91762e57c109c"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/plone/volto"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/releases/tag/16.34.1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/releases/tag/17.22.2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/volto/releases/tag/19.0.0-alpha.6"
  }, {
    "type" : "WEB",
    "url" : "http://github.com/plone/volto/releases/tag/18.27.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476", "CWE-754" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-01T15:53:43Z",
    "nvd_published_at" : "2025-10-02T22:15:38Z"
  }
}