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Critical

Vitess users with backup storage access can write to arbitrary file paths on restore

Type: advisorySources: OSV

Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. No known workarounds are available.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-27969
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 19:58 UTC · Revision 1

Source evidence

Vitess users with backup storage access can write to arbitrary file paths on restore

core-osv · Original source

Published 26 Feb 2026, 01:52 UTC

Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. No known workarounds are available.

osv:CVE-2026-27969
Complete source record
{
  "id": "172515b13439489907cecc52582439d99b6c502c718335d67010319f693acd55",
  "url": "https://osv.dev/vulnerability/CVE-2026-27969",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Vitess users with backup storage access can write to arbitrary file paths on restore",
    "summary": "Vitess is a database clustering system for horizontal scaling of MySQL. Prior to versions 23.0.3 and 22.0.4, anyone with read/write access to the backup storage location (e.g. an S3 bucket) can manipulate backup manifest files so that files in the manifest — which may be files that they have also added to the manifest and backup contents — are written to any accessible location on restore. This is a common path traversal security issue. This can be used to provide that attacker with unintended/unauthorized access to the production deployment environment — allowing them to access information available in that environment as well as run any additional arbitrary commands there. Versions 23.0.3 and 22.0.4 contain a patch. No known workarounds are available.",
    "evidence": "osv:CVE-2026-27969",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-27969",
      "aliases": [
        "CVE-2026-27969",
        "GHSA-r492-hjgh-c9gw",
        "GO-2026-4570"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:L/SI:H/SA:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vitessio/vitess",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5b0d3ad22b7553e7a31dc1e02b8005f192cbe039"
                },
                {
                  "introduced": "bee41a670a0e18e7400364712263bab171ee89dc"
                },
                {
                  "fixed": "0466df5c81c56c9a3d6cad0d38991cf93b657fa2"
                },
                {
                  "fixed": "c565cab615bc962bda061dcd645aa7506c59ca4a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "22.0.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:linuxfoundation:vitess:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "23.0.0"
                      },
                      {
                        "fixed": "23.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c565cab615bc962bda061dcd645aa7506c59ca4a"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v23.0.2",
            "v0.23.2",
            "v23.0.1",
            "v0.23.1",
            "v22.0.3",
            "v0.22.3",
            "v22.0.2",
            "v0.22.2",
            "v23.0.0",
            "v0.23.0",
            "v22.0.1",
            "v0.22.1",
            "v22.0.0",
            "v0.22.0",
            "v22.0.0-rc3",
            "v0.22.0-rc3",
            "v22.0.0-rc2",
            "v0.22.0-rc2",
            "v22.0.0-rc1",
            "v0.22.0-rc1",
            "v10.0.0-rc1-mysql80",
            "v10.0.0-rc1",
            "v9.0.0-rc1",
            "v8.0.0-rc1",
            "v7.0.0-beta",
            "v6.0.0-rc.1",
            "v5.0.1",
            "v5.0.0",
            "v3.0.0-rc.3",
            "v3.0",
            "v3.0.0-rc.2",
            "v3.0.0-rc.1",
            "v2.2.0-rc.1",
            "v2.2-alpha",
            "v2.2",
            "v2.1.0-alpha.1",
            "v2.0.0-rc.2",
            "v2.0.0-rc.1",
            "v2.0.0-beta.2",
            "v2.0.0-alpha5",
            "v2.0.0-alpha4",
            "v2.0.0-alpha2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27969.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.188537820Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27969.json",
        "https://github.com/vitessio/vitess/security/advisories/GHSA-r492-hjgh-c9gw",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-27969",
        "https://github.com/vitessio/vitess/commit/c565cab615bc962bda061dcd645aa7506c59ca4a",
        "https://github.com/vitessio/vitess/pull/19470"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27969.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-27969",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489493,
  "published_at": "2026-02-26T01:52:30.677+00:00"
}