What’s Vulnerable › Vulnerabilities
CVE-2026-32621: Apollo Federation has prototype pollution via incomplete key sanitization
- Severity: critical (CVSS 9.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-16 · updated 2026-06-17
- Weakness: CWE-1321
Description
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.
Affected products
- @apollo federation-internals: from 2.13.0-preview.0, < 2.13.2; from 2.12.0-preview.0, < 2.12.3; from 2.11.0-preview.0, < 2.11.6; from 2.10.0-alpha.0, < 2.10.5; before 2.9.6
- @apollo gateway: from 2.13.0-preview.0, < 2.13.2; from 2.12.0-preview.0, < 2.12.3; from 2.11.0-preview.0, < 2.11.6; from 2.10.0-alpha.0, < 2.10.5; before 2.9.6
- @apollo query-planner: from 2.13.0-preview.0, < 2.13.2; from 2.12.0-preview.0, < 2.12.3; from 2.11.0-preview.0, < 2.11.6; from 2.10.0-alpha.0, < 2.10.5; before 2.9.6
References
Get alerted when CVE-2026-32621 or the next vulnerability affects your stack