chore(deps): update dependency @apollo/gateway to v2.11.6 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@apollo/gateway (source)	2.11.2 → 2.11.6

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Apollo Federation vulnerable to prototype pollution via incomplete key sanitization

CVE-2026-32621 / GHSA-pfjj-6f4p-rvmh

More information

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

• CVSS Score: 9.9 / 10 (Critical)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

References

• https://github.com/apollographql/federation/security/advisories/GHSA-pfjj-6f4p-rvmh
• https://nvd.nist.gov/vuln/detail/CVE-2026-32621
• https://github.com/advisories/GHSA-pfjj-6f4p-rvmh

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

apollographql/federation (@​apollo/gateway)

v2.11.6

Compare Source

Patch Changes

• Fixed several code paths that access response objects to prevent JavaScript prototype pollution and unintended access to the prototype chain. (#​3398)

  See the associated GitHub Advisories GHSA-pfjj-6f4p-rvmh for more information.

• Updated dependencies [73ae202f72a31b9f63e779c535d7ecb059ff908a]:

  • @​apollo/query-planner@​2.11.6
  • @​apollo/federation-internals@​2.11.6
  • @​apollo/composition@​2.11.6

v2.11.5

Compare Source

Patch Changes

• Updated dependencies [5ee4d966487e714ae6bc6445bf53d75ccbbaf6ae, e1c58611c3c996b4fff98a54e49f00549ff2115d, 3e2d1fd315db54a089fedf131cfaa27792bdd049]:
  • @​apollo/composition@​2.11.5
  • @​apollo/federation-internals@​2.11.5
  • @​apollo/query-planner@​2.11.5

v2.11.4

Compare Source

Patch Changes

• Updated dependencies [d221ac04c3ee00a3c7a671d9d56e2cfa36943b49, 7730c03e128be6754b9e40c086d5cb5c4685ac66, 4bda3a498eba36e187dfd9ae673eca12d3f3502c, f3ab499eaf62b1a1c0f08b838d2cbde5accb303a, 6adbf7e86927de969aedab665b6a3a8dbf3a6095, 2a20dc38dfc40e0b618d5cc826f18a19ddb91aff]:
  • @​apollo/composition@​2.11.4
  • @​apollo/federation-internals@​2.11.4
  • @​apollo/query-planner@​2.11.4

v2.11.3

Compare Source

Patch Changes

• Updated dependencies [4faa114215200daf7ad7518be8e50071fcde783c, 8c7a2cd655ad3060e9f5c3b106cfbdb59251701c]:
  • @​apollo/query-planner@​2.11.3
  • @​apollo/federation-internals@​2.11.3
  • @​apollo/composition@​2.11.3

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