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Vulnerability · Published Oct 21, 2026 · Assigned by GitLab

CVE-2026-105711Use of Cache Containing Sensitive Information in GitLab

Low 3.5

In plain English

A low-severity security flaw in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)0.2%top 87.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when a merge request in a public project referenced a confidential issue from a private project, an authenticated user with no project membership could have read the confidential issue's title, due to a viewer-independent fragment cache key that incorrectly shared per-user-redacted rendered content across all users.

Affected products (as reported)

VendorProductVersions
GitLab GitLab 15.0 – before 19.3.619.4 – before 19.4.319.5 – before 19.5.1

Weakness: CWE-524 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

References