Vulnerability Report

CVE-2026-5377

Title: Authenticated information disclosure of confidential issue titles

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-5377.

CWE Category CWE-863

Published Date Apr 22, 2026

Modified Date Apr 23, 2026

Exploit Status Not Found

Score 4.3 CVSS v3.1

Exploit Probability (EPSS)

0.02%

Vulnerability Summary

CVE-2026-5377: GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.11 before 18.11.1 that could have allowed an authenticated user to access titles of confidential or private issues in public projects due to improper access control in the issue description rendering process.

Impacted Vendors

gitlab 1

jenkins 1

Reference Links

https://about.gitlab.com/releases/2026/04/22/patch-release-gitlab-18-11-1-released/ https://gitlab.com/gitlab-org/gitlab/-/work_items/595553 https://hackerone.com/reports/3640688

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

4.3

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-5377 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 23, 2026 MODIFIED

Vulnerability data updated via NVD.

April 23, 2026 MODIFIED

Vulnerability data updated via NVD.

April 22, 2026 MODIFIED

Vulnerability data updated via NVD.

April 22, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.