{"id":"GHSA-gjxx-92w9-8v8f","revision":null,"records":[{"revision":"68eb2f6cf906412d83e0a8adac6e8809","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-34076","aliases":[],"title":"Clerk JavaScript: SSRF in the opt-in clerkFrontendApiProxy feature may leak secret keys to unintended host","description":"Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and @clerk/fastify from versions 3.1.0 to before 3.1.5, the clerkFrontendApiProxy function in @clerk/backend is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's Clerk-Secret-Key to an attacker-controlled server. This issue has been patched in @clerk/hono version 0.1.5, @clerk/express version 2.0.7, @clerk/backend version 3.2.3, and @clerk/fastify version 3.1.5.","state":0,"publishedAt":"2026-04-01T16:59:21.828+00:00","modifiedAt":"2026-04-01T18:00:23.118+00:00","affected":[{"ecosystem":"Vendor product","name":"javascript","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"clerk\",\n                    \"product\": \"javascript\",\n                    \"versions\": [\n                        {\n                            \"version\": \"@clerk/hono >= 0.1.0, < 0.1.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"@clerk/express >= 2.0.0, < 2.0.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"@clerk/backend >= 3.0.0, < 3.2.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"@clerk/fastify >= 3.1.0, < 3.1.5\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-34076","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-34076","identifiers":["CVE-2026-34076"]},"retained":false,"historicalAffected":[]},{"revision":"5467f466fa28411e8e93acf7982c2328","observedAt":"2026-11-01T06:05:30.251+00:00","statement":{"source":"euvd","id":"EUVD-2026-17974","aliases":["CVE-2026-34076"],"title":"Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and…","description":"Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and @clerk/fastify from versions 3.1.0 to before 3.1.5, the clerkFrontendApiProxy function in @clerk/backend is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's Clerk-Secret-Key to an attacker-controlled server. This issue has been patched in @clerk/hono version 0.1.5, @clerk/express version 2.0.7, @clerk/backend version 3.2.3, and @clerk/fastify version 3.1.5.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":null}],"references":["https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-17974","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 1, 2026, 4:59:21 PM","dateUpdated":"Apr 1, 2026, 6:00:23 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-17974","identifiers":["EUVD-2026-17974","CVE-2026-34076"]},"retained":false,"historicalAffected":[]},{"revision":"368110aeab834b56814f51eed9b42536","observedAt":"2026-10-27T09:03:00.507+00:00","statement":{"source":"nvd","id":"CVE-2026-34076","aliases":[],"title":"Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and…","description":"Clerk JavaScript is the official JavaScript repository for Clerk authentication. In @clerk/hono from versions 0.1.0 to before 0.1.5, @clerk/express from versions 2.0.0 to before 2.0.7, @clerk/backend from versions 3.0.0 to before 3.2.3, and @clerk/fastify from versions 3.1.0 to before 3.1.5, the clerkFrontendApiProxy function in @clerk/backend is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's Clerk-Secret-Key to an attacker-controlled server. This issue has been patched in @clerk/hono version 0.1.5, @clerk/express version 2.0.7, @clerk/backend version 3.2.3, and @clerk/fastify version 3.1.5.","state":0,"publishedAt":"2026-04-01T18:16:29.527+00:00","modifiedAt":"2026-10-26T22:10:00.163+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-34076","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-918"],"productCriteria":[],"sourceDates":{"published":"2026-04-01T18:16:29.527","lastModified":"2026-10-26T22:10:00.163"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-34076","identifiers":["CVE-2026-34076"]},"retained":false,"historicalAffected":[]},{"revision":"fb6f08fde0a74e9cbbf7a0b1745b549b","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-gjxx-92w9-8v8f","aliases":["CVE-2026-34076"],"title":"Clerk: SSRF in the opt-in clerkFrontendApiProxy feature may leak secret keys to unintended host","description":"## Summary\n\nThe `clerkFrontendApiProxy` function in `@clerk/backend` is vulnerable to Server-Side Request Forgery (SSRF). An unauthenticated attacker can craft a request path that causes the proxy to send the application's `Clerk-Secret-Key` to an attacker-controlled server.\n\n## Affected packages\n\nOnly applications that have opted into the `frontendApiProxy` feature are affected. This feature is not enabled by default. **Users of `@clerk/nextjs` are not affected** due to how the framework handles repeated `/` in request paths.\n\n| Package | Affected versions | Fixed version |\n|---|---|---|\n| `@clerk/backend` | `>= 3.0.0, <= 3.2.2` | `3.2.3` |\n| `@clerk/express` | `>= 2.0.0, <= 2.0.6` | `2.0.7` |\n| `@clerk/hono` | `>= 0.1.0, <= 0.1.4` | `0.1.5` |\n| `@clerk/fastify` | `>= 3.1.0, <= 3.1.4` | `3.1.5` |\n\nSearch your codebase for the `frontendApiProxy` option. If none of the patterns below appear in your code, you are not affected.\n\n**@clerk/express**\n```ts\napp.use(clerkMiddleware({ frontendApiProxy: { enabled: true } }));\n```\n\n**@clerk/hono**\n```ts\napp.use('*', clerkMiddleware({ frontendApiProxy: { enabled: true } }));\n```\n\n**@clerk/fastify**\n```ts\nfastify.register(clerkPlugin, { frontendApiProxy: { enabled: true } });\n```\n\n**@clerk/backend**\n```ts\nimport { clerkFrontendApiProxy } from '@clerk/backend/proxy';\n```\n\nA quick way to check across your entire project:\n\n```sh\ngrep -r \"frontendApiProxy\\|clerkFrontendApiProxy\" .\n```\n\nIf there are no matches, you are not using this feature.\n\n\n## Recommended actions\n\nClerk's internal logs show no evidence of users utilizing the built-in proxy with the impacted versions. Despite that, if you are on an impacted version and use the built-in proxy we recommend upgrading and rotating your Clerk Secret Key immediately.\n\n1. **Upgrade** to the patched version of `@clerk/backend` (and `@clerk/express`, `@clerk/hono`, etc.)\n2. **Rotate your Clerk Secret Key** after upgrading - if an attacker exploited this vulnerability, they may have captured your key. Rotate it in the [Clerk Dashboard](https://dashboard.clerk.com) under **API Keys**.  You should deploy your application with the updated key before revoking the existing key.\n3. **Audit access logs** for requests to your proxy endpoint (`/__clerk/` by default) containing double slashes in the path.\n\n\n\n## Credit\n\nDiscovered during an internal code audit.","state":0,"publishedAt":"2026-03-27T19:58:19+00:00","modifiedAt":"2026-04-06T17:04:07.972168+00:00","affected":[{"ecosystem":"npm","name":"@clerk/backend","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.0.0"},{"kind":"fixed","version":"3.2.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@clerk/express","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0"},{"kind":"fixed","version":"2.0.7"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@clerk/hono","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.1.0"},{"kind":"fixed","version":"0.1.5"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"@clerk/fastify","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.1.0"},{"kind":"fixed","version":"3.1.5"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/clerk/javascript/security/advisories/GHSA-gjxx-92w9-8v8f","https://nvd.nist.gov/vuln/detail/CVE-2026-34076","https://github.com/clerk/javascript"],"sourceUrl":"https://github.com/advisories/GHSA-gjxx-92w9-8v8f","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-gjxx-92w9-8v8f","identifiers":["GHSA-gjxx-92w9-8v8f","CVE-2026-34076"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-01T14:57:20.8260435+00:00","complete":true,"records":1766,"lastAttemptAt":"2026-11-01T14:57:20.8260435+00:00","lastSuccessAt":"2026-11-01T14:57:20.9959229+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.9959241+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-aece262bb10a694367a43c24d730aa8e8dc171723eaec4c15cdd32f04bda103f-d531ae12fd03a30fe810f370dfdaee6d5ce6932749e1e8d224c6f881789a42e1","complete":true,"records":417653,"lastAttemptAt":"2026-11-01T14:57:20.4936635+00:00","lastSuccessAt":"2026-11-01T14:57:20.4630684+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.4936635+00:00","snapshotPublishedAt":"2026-11-01T14:28:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-7a3763b612e249af8e21823e33cbf35e","complete":false,"records":13568,"lastAttemptAt":"2026-11-01T15:09:18.8870785+00:00","lastSuccessAt":"2026-11-01T15:09:18.883+00:00","error":null,"lastVerifiedAt":"2026-11-01T15:09:18.883+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13449,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-01T14:57:20.8260435+00:00","complete":true,"records":1095,"lastAttemptAt":"2026-11-01T14:57:20.8260435+00:00","lastSuccessAt":"2026-11-01T14:57:20.9969402+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.9969412+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-6f777ca48c9f4a26b09cd3abcf1e29ef","complete":true,"records":13580,"lastAttemptAt":"2026-11-01T14:57:28.522156+00:00","lastSuccessAt":"2026-11-01T14:57:28.517+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:28.517+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13637,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-21dcd6662970dfea02e4ea60ee637115e8d92664947484d2b9276b3f6568a84f","complete":true,"records":9815,"lastAttemptAt":"2026-11-01T14:57:20.7705737+00:00","lastSuccessAt":"2026-10-30T23:47:34.1817587+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.7705737+00:00","snapshotPublishedAt":"2026-10-30T23:33:17+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-2de9ccc5290f060c7aa63f89c25dd76f655a64ba1aba7c05c97fa3bee4f09899","complete":true,"records":1967,"lastAttemptAt":"2026-11-01T14:57:20.5439977+00:00","lastSuccessAt":"2026-10-28T20:55:34.2982937+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.5439977+00:00","snapshotPublishedAt":"2026-10-28T20:03:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-f95f76cd406ae5bae3de632ad37fd2d5160b44f5e6b51748ac6f8f0c0c88e72b","complete":true,"records":3028,"lastAttemptAt":"2026-11-01T14:57:20.7877402+00:00","lastSuccessAt":"2026-10-30T23:47:38.4914494+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.7877402+00:00","snapshotPublishedAt":"2026-10-30T23:18:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-55acacd40a7aab88cf530cfddf98233a5d800cfc6bb1883653ecf5bee50f4426","complete":true,"records":230996,"lastAttemptAt":"2026-11-01T14:57:20.6511816+00:00","lastSuccessAt":"2026-11-01T09:06:49.6961926+00:00","error":null,"lastVerifiedAt":"2026-11-01T14:57:20.6511816+00:00","snapshotPublishedAt":"2026-11-01T08:33:39+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}