CVE-2026-32230Public exploitNetwork attack vector

Private monitor timing disclosure via unchecked badge lookup

Published Mar 12, 2026 · Updated Mar 12, 2026

Information disclosure in Uptime Kuma 2.0.0 through 2.1.3 allows remote attackers to read private-monitor response-time data. The unauthenticated GET /api/badge/:id/ping/:duration endpoint calls UptimeCalculator for the supplied monitor ID without checking its membership in a public group. A reachable instance and a valid private monitor ID are sufficient to reveal average ping data and infer the existence and reachability of internal services.

CVSS severity5.3
Medium
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Uptime Kuma 2.0.0 through 2.1.3 allows remote attackers to read private-monitor response-time data. The unauthenticated GET /api/badge/:id/ping/:duration endpoint calls UptimeCalculator for the supplied monitor ID without checking its membership in a public group. A reachable instance and a valid private monitor ID are sufficient to reveal average ping data and infer the existence and reachability of internal services.

The record

CVE
CVE-2026-32230
Published
Mar 12, 2026
Updated
Mar 12, 2026
Vendor
Louis Lam
Product
Uptime Kuma
Classifications
CWE-862, T1595
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.0.0, < 2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Louis Lam · Uptime Kumaversion=>= 2.0.0, < 2.2.0

Published CVSS scores

5.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1595Active Scanning

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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