CVE-2025-32033
Apollo Router Operation Limits Vulnerable to Bypass via Integer Overflow
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
The Apollo Router Core is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation 2. Prior to 1.61.2 and 2.1.1, the operation limits plugin uses unsigned 32-bit integers to track limit counters (e.g. for a query's height). If a counter exceeded the maximum value for this data type (4,294,967,295), it wrapped around to 0, unintentionally allowing queries to bypass configured thresholds. This could occur for large queries if the payload limit were sufficiently increased, but could also occur for small queries with deeply nested and reused named fragments. This has been remediated in apollo-router versions 1.61.2 and 2.1.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.60% · top 51% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected < 1.61.2
- affected >= 2.0.0-alpha.0, < 2.1.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.ioapollo-routerGHSA-84m6-5m72-45fp (opens in a new tab)
References (3)
- https://github.com/apollographql/router/security/advisories/GHSA-84m6-5m72-45fp (opens in a new tab)x_refsource_CONFIRM
- https://github.com/apollographql/router/commit/ab6675a63174715ea6ff50881fc957831d4e9564 (opens in a new tab)x_refsource_MISC
- https://github.com/apollographql/router/commit/bba032e183b861348a466d3123c7137a1ae18952 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-84m6-5m72-45fp (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-32033)Record last updated .