Vulnerability-Lookup

CVE-2026-32621 (GCVE-0-2026-32621)

Vulnerability from cvelistv5 – Published: 2026-03-13 20:29 – Updated: 2026-03-16 20:14

Title

Apollo Federation has prototype pollution via incomplete key sanitization

Summary

Apollo Federation is an architecture for declaratively composing APIs into a unified graph. Prior to 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2, a vulnerability exists in query plan execution within the gateway that may allow pollution of Object.prototype in certain scenarios. A malicious client may be able to pollute Object.prototype in gateway directly by crafting operations with field aliases and/or variable names that target prototype-inheritable properties. Alternatively, if a subgraph were to be compromised by a malicious actor, they may be able to pollute Object.prototype in gateway by crafting JSON response payloads that target prototype-inheritable properties. This vulnerability is fixed in 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2.

Severity ?

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

CWE

CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

GitHub_M

References

URL

Tags

https://github.com/apollographql/federation/secur…

x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

@apollo

federation-internals

Affected: >= 2.13.0-preview.0, < 2.13.2
Affected: >= 2.12.0-preview.0, < 2.12.3
Affected: >= 2.11.0-preview.0, < 2.11.6
Affected: >= 2.10.0-alpha.0, < 2.10.5
Affected: < 2.9.6

	@apollo	gateway	Affected: >= 2.13.0-preview.0, < 2.13.2 Affected: >= 2.12.0-preview.0, < 2.12.3 Affected: >= 2.11.0-preview.0, < 2.11.6 Affected: >= 2.10.0-alpha.0, < 2.10.5 Affected: < 2.9.6
	@apollo	query-planner	Affected: >= 2.13.0-preview.0, < 2.13.2 Affected: >= 2.12.0-preview.0, < 2.12.3 Affected: >= 2.11.0-preview.0, < 2.11.6 Affected: >= 2.10.0-alpha.0, < 2.10.5 Affected: < 2.9.6

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-32621

Vulnerability from fkie_nvd - Published: 2026-03-16 14:19 - Updated: 2026-04-28 21:13

Severity ?

9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/apollographql/federation/security/advisories/GHSA-pfjj-6f4p-rvmh

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
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      "lang": "en",
      "value": "Apollo Federation is an architecture for declaratively composing APIs into a unified graph. Prior to 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2, a vulnerability exists in query plan execution within the gateway that may allow pollution of Object.prototype in certain scenarios. A malicious client may be able to pollute Object.prototype in gateway directly by crafting operations with field aliases and/or variable names that target prototype-inheritable properties. Alternatively, if a subgraph were to be compromised by a malicious actor, they may be able to pollute Object.prototype in gateway by crafting JSON response payloads that target prototype-inheritable properties. This vulnerability is fixed in 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2."
    },
    {
      "lang": "es",
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    }
  ],
  "id": "CVE-2026-32621",
  "lastModified": "2026-04-28T21:13:28.120",
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GHSA-PFJJ-6F4P-RVMH

Vulnerability from github – Published: 2026-03-13 20:51 – Updated: 2026-03-19 20:48

Summary

Apollo Federation vulnerable to prototype pollution via incomplete key sanitization

Details

Impact

A vulnerability exists in query plan execution within the gateway that may allow pollution of Object.prototype in certain scenarios. A malicious client may be able to pollute Object.prototype in gateway directly by crafting operations with field aliases and/or variable names that target prototype-inheritable properties. Alternatively, if a subgraph were to be compromised by a malicious actor, they may be able to pollute Object.prototype in gateway by crafting JSON response payloads that target prototype-inheritable properties.

Because Object.prototype is shared across the Node.js process, successful exploitation can affect subsequent requests to the gateway instance. This may result in unexpected application behavior, privilege escalation, data integrity issues, or other security impact depending on how polluted properties are subsequently consumed by the application or its dependencies. As of the date of this advisory, Apollo is not aware of any reported exploitation of this vulnerability.

Patches

Mitigations addressing prototype pollution exposure have been applied in @apollo/federation-internals, @apollo/gateway, and @apollo/query-planner versions 2.9.6, 2.10.5, 2.11.6, 2.12.3, and 2.13.2. Users are encouraged to upgrade to these versions or later at their earliest convenience.

Workarounds

A fully effective workaround is not available without a code change. As an interim measure, users who are unable to upgrade immediately may consider placing an input validation layer in front of the gateway to filter operations containing GraphQL names matching known Object.prototype pollution patterns (e.g., __proto__, constructor, prototype). Users should also ensure that subgraphs in their federated graph originate from trusted sources.

Severity ?

9.9 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Show details on source website

JSON

To clipboard

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    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/gateway"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.11.0"
            },
            {
              "fixed": "2.11.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/gateway"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.12.0"
            },
            {
              "fixed": "2.12.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/gateway"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.13.0"
            },
            {
              "fixed": "2.13.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/query-planner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/query-planner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.10.0"
            },
            {
              "fixed": "2.10.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/query-planner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.11.0"
            },
            {
              "fixed": "2.11.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/query-planner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.12.0"
            },
            {
              "fixed": "2.12.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@apollo/query-planner"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.13.0"
            },
            {
              "fixed": "2.13.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32621"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-13T20:51:10Z",
    "nvd_published_at": "2026-03-16T14:19:39Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nA vulnerability exists in query plan execution within the gateway that may allow pollution of `Object.prototype` in certain scenarios. A malicious client may be able to pollute `Object.prototype` in gateway directly by crafting operations with field aliases and/or variable names that target prototype-inheritable properties. Alternatively, if a subgraph were to be compromised by a malicious actor, they may be able to pollute `Object.prototype` in gateway by crafting JSON response payloads that target prototype-inheritable properties.\n\nBecause `Object.prototype` is shared across the Node.js process, successful exploitation can affect subsequent requests to the gateway instance. This may result in unexpected application behavior, privilege escalation, data integrity issues, or other security impact depending on how polluted properties are subsequently consumed by the application or its dependencies. As of the date of this advisory, Apollo is not aware of any reported exploitation of this vulnerability.\n\n### Patches\nMitigations addressing prototype pollution exposure have been applied in `@apollo/federation-internals`, `@apollo/gateway`, and `@apollo/query-planner` versions `2.9.6`, `2.10.5`, `2.11.6`, `2.12.3`, and `2.13.2`.   Users are encouraged to upgrade to these versions or later at their earliest convenience.\n\n### Workarounds\nA fully effective workaround is not available without a code change. As an interim measure, users who are unable to upgrade immediately may consider placing an input validation layer in front of the gateway to filter operations containing [GraphQL names](https://spec.graphql.org/September2025/#sec-Names) matching known `Object.prototype` pollution patterns (e.g., `__proto__`, `constructor`, `prototype`). Users should also ensure that subgraphs in their federated graph originate from trusted sources.",
  "id": "GHSA-pfjj-6f4p-rvmh",
  "modified": "2026-03-19T20:48:00Z",
  "published": "2026-03-13T20:51:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/apollographql/federation/security/advisories/GHSA-pfjj-6f4p-rvmh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32621"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apollographql/federation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apollo Federation vulnerable to prototype pollution via incomplete key sanitization"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-32621 (GCVE-0-2026-32621)

FKIE_CVE-2026-32621

GHSA-PFJJ-6F4P-RVMH

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature