CVE-2026-71862Public exploitNetwork attack vector

Bearer-token disclosure via public status-page response

Published Aug 21, 2026 · Updated Aug 21, 2026

Information disclosure in BlueWave Labs Checkmate 3.3.0 through 3.9.1 allows remote attackers to extract Bearer tokens via a public status-page API. The statusPageController spreads each complete monitor object into the JSON response when showURL is enabled, retaining the secret field consumed as an Authorization credential. Exploitation requires an administrator to enable the default-off showURL setting and publish a status page containing an HTTP monitor with a configured secret.

CVSS severity7.5
High
EPSS probability0.35%
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 BlueWave Labs Checkmate 3.3.0 through 3.9.1 allows remote attackers to extract Bearer tokens via a public status-page API. The statusPageController spreads each complete monitor object into the JSON response when showURL is enabled, retaining the secret field consumed as an Authorization credential. Exploitation requires an administrator to enable the default-off showURL setting and publish a status page containing an HTTP monitor with a configured secret.

The record

CVE
CVE-2026-71862
Published
Aug 21, 2026
Updated
Aug 21, 2026
Vendor
BlueWave Labs
Product
Checkmate
Classifications
CWE-522, CWE-200, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 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=>= 3.3.0, < 3.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

BlueWave Labs · Checkmateversion=>= 3.3.0, < 3.9.2

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552Unsecured Credentials

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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