{"id":"CVE-2026-29779","aliases":["EUVD-2026-10152","GHSA-36q9-v7p3-vj6v"],"status":"published","title":"UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle","description":"UptimeFlare is a serverless uptime monitoring \u0026 status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.","severity":{"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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00332,"percentile":0.26729,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2026-03-07T15:19:38Z","modified":"2026-10-28T02:31:11Z","products":[{"vendor":"lyc8503","product":"uptimeflare"}],"references":[{"url":"https://github.com/lyc8503/UptimeFlare/security/advisories/GHSA-36q9-v7p3-vj6v","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory"]},{"url":"https://github.com/lyc8503/UptimeFlare/issues/198","tags":["x_refsource_MISC","Issue Tracking","report"]},{"url":"https://github.com/lyc8503/UptimeFlare/commit/377a5963c66ba9a798abebfe8d80378b053435e9","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29779.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29779","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-29779","title":"UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle","description":"UptimeFlare is a serverless uptime monitoring \u0026 status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.","status":"published","published":"2026-03-07T15:19:38.593Z","modified":"2026-03-09T18:27:06.064Z","cvss":[{"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":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-10152","description":"UptimeFlare is a serverless uptime monitoring \u0026 status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.","status":"published","published":"2026-03-07T15:19:38Z","modified":"2026-03-09T18:27:06Z","cvss":[{"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"}],"updated_at":"2026-11-02T19:48:06.581696Z"}],"nvd":[{"id":"CVE-2026-29779","description":"UptimeFlare is a serverless uptime monitoring \u0026 status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.","status":"published","published":"2026-03-07T16:15:54.953Z","modified":"2026-06-17T10:29:52.243Z","cvss":[{"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":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:08.279852Z"}],"osv":[{"id":"CVE-2026-29779","title":"UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle","description":"UptimeFlare is a serverless uptime monitoring \u0026 status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.","status":"published","published":"2026-03-07T15:19:38.593Z","modified":"2026-10-28T02:31:11.937289009Z","cvss":[{"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"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:45:00.530889Z"}]}}