{"id":"CVE-2023-45812","aliases":["EUVD-2023-2798","GHSA-r344-xw3p-2frj"],"status":"published","title":"Improper Check or Handling of Exceptional Conditions in apollo-router","description":"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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00867,"percentile":0.58994,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-703","CWE-754"],"published":"2023-10-18T21:29:32Z","modified":"2026-10-28T02:31:05Z","fixes":[{"ecosystem":"crates.io","package":"apollo-router","fixed_in":["1.33.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"apollo-router","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.31.0"},{"fixed":"1.33.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"apollo-router","ranges":[{"type":"SEMVER","events":[{"introduced":"1.31.0"},{"fixed":"1.33.0"}]}]}],"products":[{"vendor":"apollographql","product":"apollo_helms-charts_router"},{"vendor":"apollographql","product":"apollo_router"},{"vendor":"apollographql","product":"router"},{"vendor":"asus","product":"router"}],"references":[{"url":"https://github.com/apollographql/router/security/advisories/GHSA-r344-xw3p-2frj","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://github.com/apollographql/router/pull/4014","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45812","tags":["advisory"]},{"url":"https://github.com/apollographql/router/issues/4013","tags":["web"]},{"url":"https://github.com/apollographql/router/commit/b917b8c117b46a2d508428c0856f4927dfcfc341","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r344-xw3p-2frj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45812.json","tags":["advisory"]},{"url":"https://github.com/apollographql/router","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-45812","title":"Improper Check or Handling of Exceptional Conditions in apollo-router","description":"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.","status":"published","published":"2023-10-18T21:29:32.731Z","modified":"2024-09-13T15:02:17.414Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:35:22.984825Z"}],"euvd":[{"id":"EUVD-2023-2798","description":"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.","status":"published","published":"2023-10-18T21:29:32Z","modified":"2024-09-13T15:02:17Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:55:55.933062Z"}],"ghsa":[{"id":"GHSA-r344-xw3p-2frj","title":"Apollo Router vulnerable to Improper Check or Handling of Exceptional Conditions","description":"### Impact\nThe 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.\n \nTo 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.  \n\n### Patches\nRouter version 1.33.0 has a fix for this vulnerability. https://github.com/apollographql/router/pull/4014 fixes the issue.  \n\n### Workarounds\nFor affected versions, avoid using the coprocessor supergraph response:\n```yml\n# do not use this stage in your coprocessor configuration\ncoprocessor:\n  supergraph:\n    response:\n``` \n\nOr you can disable defer and subscriptions support:\n```yml\n# disable defer and subscriptions:\nsupergraph:\n  defer_support: false # enabled by default\nsubscription:\n  enabled: false # disabled by default\n```\nand continue to use the coprocessor supergraph response.\n### References\nhttps://github.com/apollographql/router/issues/4013\n","status":"published","published":"2023-10-19T16:08:10Z","modified":"2023-11-06T05:01:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-703","CWE-754"],"updated_at":"2026-11-02T14:37:14.234712Z"}],"nvd":[{"id":"CVE-2023-45812","description":"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.","status":"published","published":"2023-10-18T22:15:09.403Z","modified":"2026-06-17T06:29:34.47Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:08:39.058878Z"}],"osv":[{"id":"CVE-2023-45812","title":"Improper Check or Handling of Exceptional Conditions in apollo-router","description":"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.","status":"published","published":"2023-10-18T21:29:32.731Z","modified":"2026-10-28T02:31:05.510858937Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:44:34.287121Z"},{"id":"GHSA-r344-xw3p-2frj","title":"Apollo Router vulnerable to Improper Check or Handling of Exceptional Conditions","description":"### Impact\nThe 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.\n \nTo 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.  \n\n### Patches\nRouter version 1.33.0 has a fix for this vulnerability. https://github.com/apollographql/router/pull/4014 fixes the issue.  \n\n### Workarounds\nFor affected versions, avoid using the coprocessor supergraph response:\n```yml\n# do not use this stage in your coprocessor configuration\ncoprocessor:\n  supergraph:\n    response:\n``` \n\nOr you can disable defer and subscriptions support:\n```yml\n# disable defer and subscriptions:\nsupergraph:\n  defer_support: false # enabled by default\nsubscription:\n  enabled: false # disabled by default\n```\nand continue to use the coprocessor supergraph response.\n### References\nhttps://github.com/apollographql/router/issues/4013\n","status":"published","published":"2023-10-19T16:08:10Z","modified":"2026-09-10T03:49:24.652702634Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-703","CWE-754"],"updated_at":"2026-11-02T15:46:55.122811Z"}]}}