CVE-2019-15590Network attack vector

Private data disclosure via unfiltered group search

Published Jan 28, 2020 · Updated Aug 5, 2024

Improper access control in GitLab EE before 12.3.5 allows remote attackers to read private issues and merge requests via group search. The Elasticsearch-backed group search returns indexed issue and merge-request documents without enforcing their private visibility. The flaw is reachable without authentication only when Elasticsearch integration is enabled, and it exposes confidential content without changing data.

CVSS severity7.5
High
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in GitLab EE before 12.3.5 allows remote attackers to read private issues and merge requests via group search. The Elasticsearch-backed group search returns indexed issue and merge-request documents without enforcing their private visibility. The flaw is reachable without authentication only when Elasticsearch integration is enabled, and it exposes confidential content without changing data.

The record

CVE
CVE-2019-15590
Published
Jan 28, 2020
Updated
Aug 5, 2024
Vendor
GitLab
Product
GitLab EE
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record 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=before 12.1.14
  2. Affected versionversion=before 12.2.8
  3. Affected versionversion=before 12.3.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLab EEversion=before 12.1.14; version=before 12.2.8; version=before 12.3.5

Published CVSS scores

7.5UbuntuCVSS: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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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