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gitlab, gitlab-agent — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-1094

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 18.8.4 that could have allowed an authenticated developer to hide specially crafted file changes from the WebUI.

Products
gitlab, gitlab-agent
Affected versions
14.1.0-1, 16.1.3-2, 16.1.3-2build1, 8.4.3+dfsg-12, 8.4.3+dfsg-9, 8.5.8+dfsg-5
Fixed versions
Not specified
CVEs
CVE-2026-1094
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 02:54 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-1094

core-osv · Original source

Published 11 Feb 2026, 12:16 UTC

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 18.8.4 that could have allowed an authenticated developer to hide specially crafted file changes from the WebUI.

osv:UBUNTU-CVE-2026-1094

gitlab

Fixed versions: Not specified

gitlab-agent

Fixed versions: Not specified

gitlab-agent

Fixed versions: Not specified

gitlab-agent

Fixed versions: Not specified

gitlab-agent

Fixed versions: Not specified

Complete source record
{
  "id": "294618a24c8b0eb68794fe5f82238ba884e71af9e7d023ea258e87a409196951",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-1094",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-1094",
    "summary": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 18.8.4 that could have allowed an authenticated developer to hide specially crafted file changes from the WebUI.",
    "evidence": "osv:UBUNTU-CVE-2026-1094",
    "products": [
      {
        "name": {
          "value": "gitlab",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "8.4.3+dfsg-9",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "8.4.3+dfsg-12",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "8.5.8+dfsg-5",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gitlab-agent",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "14.1.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.1.3-2",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gitlab-agent",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "16.1.3-2",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gitlab-agent",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "16.1.3-2build1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "gitlab-agent",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "16.1.3-2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "16.1.3-2build1",
            "evidence": "/affected/4/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2026-1094",
      "aliases": [
        "UBUNTU-CVE-2026-1094"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab",
            "purl": "pkg:deb/ubuntu/gitlab?arch=source&distro=xenial",
            "ecosystem": "Ubuntu:16.04:LTS"
          },
          "versions": [
            "8.4.3+dfsg-9",
            "8.4.3+dfsg-12",
            "8.5.8+dfsg-5"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1094.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "gitlab",
                "binary_version": "8.5.8+dfsg-5"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab-agent",
            "purl": "pkg:deb/ubuntu/gitlab-agent?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "14.1.0-1",
            "16.1.3-2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1094.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "ruby-kas-grpc",
                "binary_version": "16.1.3-2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab-agent",
            "purl": "pkg:deb/ubuntu/gitlab-agent?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "16.1.3-2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1094.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "ruby-kas-grpc",
                "binary_version": "16.1.3-2"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab-agent",
            "purl": "pkg:deb/ubuntu/gitlab-agent?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "16.1.3-2build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1094.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "ruby-kas-grpc",
                "binary_version": "16.1.3-2build1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab-agent",
            "purl": "pkg:deb/ubuntu/gitlab-agent?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "16.1.3-2",
            "16.1.3-2build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1094.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "ruby-kas-grpc",
                "binary_version": "16.1.3-2build1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:59:49.581100790Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-1094"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-1094",
        "https://www.cve.org/CVERecord?id=CVE-2026-1094",
        "https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/586483",
        "https://hackerone.com/reports/3502519"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-1094",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 359814,
  "published_at": "2026-02-11T12:16:00+00:00"
}