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gitlab, gitlab-agent — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-1080

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.

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-2026-1080
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 02:01 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-1080

core-osv · Original source

Published 11 Feb 2026, 12:16 UTC

GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.

osv:UBUNTU-CVE-2026-1080

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": "192acb6a3a22371bcd843675d88b91914fab3377526bfc76811a537e2d7f6f28",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-1080",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-1080",
    "summary": "GitLab has remediated an issue in GitLab EE affecting all versions from 16.7 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions could have allowed an authenticated user to access iteration data from private descendant groups by querying the iterations API endpoint.",
    "evidence": "osv:UBUNTU-CVE-2026-1080",
    "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-2026-1080",
      "aliases": [
        "UBUNTU-CVE-2026-1080"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-2026-1080.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-2026-1080.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-2026-1080.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-2026-1080.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-2026-1080.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "ruby-kas-grpc",
                "binary_version": "16.1.3-2build1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:58:01.936008874Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-1080"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-1080",
        "https://www.cve.org/CVERecord?id=CVE-2026-1080",
        "https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/586477",
        "https://hackerone.com/reports/3484568"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-1080",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 357895,
  "published_at": "2026-02-11T12:16:00+00:00"
}