CVE-2025-13978Network attack vector

Authenticated private project name disclosure via API errors

Published Dec 11, 2025 · Updated Dec 11, 2025

Information disclosure in the GitLab CE/EE API allows remote authenticated users to learn names of inaccessible private projects. API error handling includes a private project's name in responses even when the requesting account lacks access; GitLab has not disclosed the affected endpoint or function. Any authenticated account can submit the relevant API requests, but the published impact is limited to project-name disclosure and excludes project contents or modification.

CVSS severity4.3
Medium
EPSS probability0.30%
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 the GitLab CE/EE API allows remote authenticated users to learn names of inaccessible private projects. API error handling includes a private project's name in responses even when the requesting account lacks access; GitLab has not disclosed the affected endpoint or function. Any authenticated account can submit the relevant API requests, but the published impact is limited to project-name disclosure and excludes project contents or modification.

The record

CVE
CVE-2025-13978
Published
Dec 11, 2025
Updated
Dec 11, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-209
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 11, 2025Record 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=17.5 <18.4.6
  2. Affected versionversion=18.5 <18.5.4
  3. Affected versionversion=18.6 <18.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=17.5 <18.4.6; version=18.5 <18.5.4; version=18.6 <18.6.2

Published CVSS scores

4.3GitLab 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-209Generation of Error Message Containing Sensitive Information

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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