{"id":"CVE-2023-45812","aliases":["GHSA-r344-xw3p-2frj"],"url":"https://o3.security/vulnerability/CVE-2023-45812","summary":"Improper Check or Handling of Exceptional Conditions in apollo-router","details":"The Apollo Router is a configurable, high-performance graph router written in Rust to run a federated supergraph that uses Apollo Federation. Affected versions are subject to a Denial-of-Service (DoS) type vulnerability which causes the Router to panic and terminate when a multi-part response is sent. When users send queries to the router that uses the `@defer` or Subscriptions, the Router will panic. To be vulnerable, users of Router must have a coprocessor with `coprocessor.supergraph.response` configured in their `router.yaml` and also to support either `@defer` or Subscriptions. Apollo Router version 1.33.0 has a fix for this vulnerability which was introduced in PR #4014. Users are advised to upgrade. Users unable to upgrade should avoid using the coprocessor supergraph response or disable defer and subscriptions support and continue to use the coprocessor supergraph response.","published":"2023-10-18T21:29:32.731Z","modified":"2026-07-15T01:49:06.426887473Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"apollo-router","fixedVersion":"1.33.0"}],"fix":{"url":"https://github.com/apollographql/router/pull/4014","label":"apollographql/router#4014"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45812.json"},{"type":"ADVISORY","url":"https://github.com/apollographql/router/security/advisories/GHSA-r344-xw3p-2frj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45812"},{"type":"FIX","url":"https://github.com/apollographql/router/pull/4014"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:06.426887473Z"}}