CVE-2026-32230 (GCVE-0-2026-32230)
Vulnerability from cvelistv5 – Published: 2026-03-12 18:13 – Updated: 2026-03-13 16:19
VLAI
EPSS
VEX
Title
Uptime Kuma is Missing Authorization Checks on Ping Badge Endpoint, Leaks Ping times of monitors without needing to be on a status page
Summary
Uptime Kuma is an open source, self-hosted monitoring tool. From 2.0.0 to 2.1.3 , the GET /api/badge/:id/ping/:duration? endpoint in server/routers/api-router.js does not verify that the requested monitor belongs to a public group. All other badge endpoints check AND public = 1 in their SQL query before returning data. The ping endpoint skips this check entirely, allowing unauthenticated users to extract average ping/response time data for private monitors. This vulnerability is fixed in 2.2.0.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-13 16:19 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/louislam/uptime-kuma/security/… | x_refsource_CONFIRM |
| https://github.com/louislam/uptime-kuma/issues/7038 | x_refsource_MISC |
| https://github.com/louislam/uptime-kuma/issues/7135 | x_refsource_MISC |
| https://github.com/louislam/uptime-kuma/commit/30… | x_refsource_MISC |
| https://github.com/louislam/uptime-kuma/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| louislam | uptime-kuma |
Affected:
>= 2.0.0, < 2.2.0
|
guessed |
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FKIE_CVE-2026-32230
Vulnerability from fkie_nvd - Published: 2026-03-12 19:16 - Updated: 2026-06-17 10:35
Severity
Summary
Uptime Kuma is an open source, self-hosted monitoring tool. From 2.0.0 to 2.1.3 , the GET /api/badge/:id/ping/:duration? endpoint in server/routers/api-router.js does not verify that the requested monitor belongs to a public group. All other badge endpoints check AND public = 1 in their SQL query before returning data. The ping endpoint skips this check entirely, allowing unauthenticated users to extract average ping/response time data for private monitors. This vulnerability is fixed in 2.2.0.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| uptime.kuma | uptime_kuma | * |
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}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
GHSA-C7HF-C5P5-5G6H
Vulnerability from github – Published: 2026-03-12 14:47 – Updated: 2026-03-13 13:35
VLAI
Summary
Uptime Kuma is Missing Authorization Checks on Ping Badge Endpoint, Leaks Ping times of monitors without needing to be on a status page
Details
Summary
The GET /api/badge/:id/ping/:duration? endpoint in server/routers/api-router.js does not verify that the requested monitor belongs to a public group. All other badge endpoints check AND public = 1 in their SQL query before returning data. The ping endpoint skips this check entirely, allowing unauthenticated users to extract average ping/response time data for private monitors.
Affected Code
File: server/routers/api-router.js, approximately line 304
The ping badge endpoint directly calls UptimeCalculator.getUptimeCalculator(requestedMonitorId) without first checking if the monitor is public. Compare with the status badge endpoint (~line 148) which correctly queries:
SELECT monitor_group.monitor_id FROM monitor_group, `group`
WHERE monitor_group.group_id = `group`.id
AND monitor_group.monitor_id = ?
AND public = 1
Protected vs Vulnerable Endpoints
| Endpoint | Has public=1 check? |
|---|---|
| /api/badge/:id/status | Yes |
| /api/badge/:id/uptime/:duration? | Yes |
| /api/badge/:id/avg-response/:duration? | Yes |
| /api/badge/:id/cert-exp | Yes |
| /api/badge/:id/response | Yes |
| /api/badge/:id/ping/:duration? | No — vulnerable |
PoC
- Install Uptime Kuma (tested on latest v2 stable via Docker)
- Create an HTTP(s) monitor (e.g., monitoring http://localhost:3001)
- Do NOT add the monitor to any public status page or group
- Wait for heartbeats to accumulate (~5 minutes)
- Query unauthenticated:
curl http://localhost:3001/api/badge/1/status → returns N/A (correct, monitor is private)
curl http://localhost:3001/api/badge/1/ping/24 → returns "Avg. Ping (24h): 10ms" (LEAKED)
Impact
An unauthenticated attacker can: - Enumerate private monitor IDs - Extract average response time data for private monitors - Infer existence and reachability of internal monitored services
Suggested Fix
Add the same public monitor check before the UptimeCalculator call:
let publicMonitor = await R.getRow(`
SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
WHERE monitor_group.group_id = \`group\`.id
AND monitor_group.monitor_id = ?
AND public = 1
`, [requestedMonitorId]);
if (!publicMonitor) {
badgeValues.message = "N/A";
badgeValues.color = badgeConstants.naColor;
}
Severity
5.3 (Medium)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 2.1.3"
},
"package": {
"ecosystem": "npm",
"name": "uptime-kuma"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-32230"
],
"database_specific": {
"cwe_ids": [
"CWE-862"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:47:39Z",
"nvd_published_at": "2026-03-12T19:16:16Z",
"severity": "MODERATE"
},
"details": "## Summary\n\nThe `GET /api/badge/:id/ping/:duration?` endpoint in `server/routers/api-router.js` does not verify that the requested monitor belongs to a public group. All other badge endpoints check `AND public = 1` in their SQL query before returning data. The ping endpoint skips this check entirely, allowing unauthenticated users to extract average ping/response time data for private monitors.\n\n## Affected Code\n\nFile: `server/routers/api-router.js`, approximately line 304\n\nThe ping badge endpoint directly calls `UptimeCalculator.getUptimeCalculator(requestedMonitorId)` without first checking if the monitor is public. Compare with the status badge endpoint (~line 148) which correctly queries:\n```sql\nSELECT monitor_group.monitor_id FROM monitor_group, `group`\nWHERE monitor_group.group_id = `group`.id\nAND monitor_group.monitor_id = ?\nAND public = 1\n```\n\n## Protected vs Vulnerable Endpoints\n\n| Endpoint | Has public=1 check? |\n|----------|-------------------|\n| /api/badge/:id/status | Yes |\n| /api/badge/:id/uptime/:duration? | Yes |\n| /api/badge/:id/avg-response/:duration? | Yes |\n| /api/badge/:id/cert-exp | Yes |\n| /api/badge/:id/response | Yes |\n| /api/badge/:id/ping/:duration? | **No \u2014 vulnerable** |\n\n## PoC\n\n1. Install Uptime Kuma (tested on latest v2 stable via Docker)\n2. Create an HTTP(s) monitor (e.g., monitoring http://localhost:3001)\n3. Do NOT add the monitor to any public status page or group\n4. Wait for heartbeats to accumulate (~5 minutes)\n5. Query unauthenticated:\n```bash\ncurl http://localhost:3001/api/badge/1/status \u2192 returns N/A (correct, monitor is private)\ncurl http://localhost:3001/api/badge/1/ping/24 \u2192 returns \"Avg. Ping (24h): 10ms\" (LEAKED)\n```\n\n## Impact\n\nAn unauthenticated attacker can:\n- Enumerate private monitor IDs\n- Extract average response time data for private monitors\n- Infer existence and reachability of internal monitored services\n\n## Suggested Fix\n\nAdd the same public monitor check before the UptimeCalculator call:\n```javascript\nlet publicMonitor = await R.getRow(`\n SELECT monitor_group.monitor_id FROM monitor_group, \\`group\\`\n WHERE monitor_group.group_id = \\`group\\`.id\n AND monitor_group.monitor_id = ?\n AND public = 1\n`, [requestedMonitorId]);\n\nif (!publicMonitor) {\n badgeValues.message = \"N/A\";\n badgeValues.color = badgeConstants.naColor;\n}\n```\n\n\u003cimg width=\"1228\" height=\"710\" alt=\"Screenshot 2026-02-24 at 4 49 40\u202fPM\" src=\"https://github.com/user-attachments/assets/80aeae2d-be08-449f-8b39-c50da7aaedba\" /\u003e\n\n\u003cimg width=\"1271\" height=\"770\" alt=\"File Alons til View He\" src=\"https://github.com/user-attachments/assets/d50c9a00-282a-4b79-b5e1-f77afde9223a\" /\u003e",
"id": "GHSA-c7hf-c5p5-5g6h",
"modified": "2026-03-13T13:35:38Z",
"published": "2026-03-12T14:47:39Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/louislam/uptime-kuma/security/advisories/GHSA-c7hf-c5p5-5g6h"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32230"
},
{
"type": "WEB",
"url": "https://github.com/louislam/uptime-kuma/issues/7038"
},
{
"type": "WEB",
"url": "https://github.com/louislam/uptime-kuma/issues/7135"
},
{
"type": "WEB",
"url": "https://github.com/louislam/uptime-kuma/commit/303a609c05d0b174a5045c90f53c2b557d4febae"
},
{
"type": "PACKAGE",
"url": "https://github.com/louislam/uptime-kuma"
},
{
"type": "WEB",
"url": "https://github.com/louislam/uptime-kuma/releases/tag/2.2.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Uptime Kuma is Missing Authorization Checks on Ping Badge Endpoint, Leaks Ping times of monitors without needing to be on a status page"
}
WID-SEC-W-2026-0713
Vulnerability from csaf_certbund - Published: 2026-03-12 23:00 - Updated: 2026-03-12 23:00Summary
Uptime Kuma: Schwachstelle ermöglicht Offenlegung von Informationen
Severity
Mittel
Scope
1 vulnerability in this advisory, including CVE-2026-32230.
CVE-2026-32230
Known affected: 1 product
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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