Public mode

No access to your tenant or devices. Every item links to its source. What this means

CVE-2026-78252

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

CVSS 3.1 8.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-78252

Published

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.3 before 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 that, under certain conditions, an authenticated user could have induced a targeted user to perform unintended state-changing HTTP requests due to improper sanitization of user-controlled data in the Markdown JSON table renderer.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-78252

Published

GitLab

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "GitLab",
                    "product": "GitLab",
                    "repo": "git://[email protected]:gitlab-org/gitlab.git",
                    "cpes": [
                        "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
                    ],
                    "versions": [
                        {
                            "version": "15.3",
                            "status": "affected",
                            "lessThan": "19.1.8",
                            "versionType": "semver"
                        },
                        {
                            "version": "19.2",
                            "status": "affected",
                            "lessThan": "19.2.6",
                            "versionType": "semver"
                        },
                        {
                            "version": "19.3",
                            "status": "affected",
                            "lessThan": "19.3.2",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON