CVE-2025-4976Public exploitNetwork attack vector

Internal-note disclosure via merge-request review context

Published Jul 24, 2025 · Updated Jul 24, 2025

Information disclosure in GitLab EE allows remote authenticated users to read internal merge request notes through GitLab Duo responses. GitLab Duo's merge-request review context includes notes marked internal and can place their contents or summaries into a public review response. The issue requires an enabled GitLab Duo feature and a public project; low-privileged access can invoke Duo, while nonmembers can view the response.

CVSS severity4.3
Medium
EPSS probability0.42%
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 GitLab EE allows remote authenticated users to read internal merge request notes through GitLab Duo responses. GitLab Duo's merge-request review context includes notes marked internal and can place their contents or summaries into a public review response. The issue requires an enabled GitLab Duo feature and a public project; low-privileged access can invoke Duo, while nonmembers can view the response.

The record

CVE
CVE-2025-4976
Published
Jul 24, 2025
Updated
Jul 24, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-213, T1213.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=17.0 <18.0.5
  2. Affected versionversion=18.1 <18.1.3
  3. Affected versionversion=18.2 <18.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=17.0 <18.0.5; version=18.1 <18.1.3; version=18.2 <18.2.1

Published CVSS scores

4.3GitLabCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3NIST NVDCVSS: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

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 exploitPublished

Weakness, pattern, technique

CWE-213Exposure of Sensitive Information Due to Incompatible Policies
T1213.003Data from Code Repositories

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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