CVE-2026-27956Network attack vector

Cross-team domain disclosure via unscoped application lookup

Published Jun 30, 2026 · Updated Jun 30, 2026

Authorization bypass in coolLabs Coolify before 4.0.0-beta.464 allows remote authenticated users to read other teams' application domains. The domains_by_server path passes the optional uuid value to Application::getDomainsByUuid, which queries all applications without a team filter. A valid API token and another team's application UUID are required; exposure is limited to configured FQDNs and application naming information.

CVSS severity4.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in coolLabs Coolify before 4.0.0-beta.464 allows remote authenticated users to read other teams' application domains. The domains_by_server path passes the optional uuid value to Application::getDomainsByUuid, which queries all applications without a team filter. A valid API token and another team's application UUID are required; exposure is limited to configured FQDNs and application naming information.

The record

CVE
CVE-2026-27956
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
coolLabs
Product
Coolify
Classifications
CWE-639
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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=< 4.0.0-beta.464

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

coolLabs · Coolifyversion=< 4.0.0-beta.464

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key

Public exploit references

No public exploit references are available in this record.

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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