GHSA-J7FR-3V8C-3QC3

Vulnerability from github – Published: 2026-07-28 16:23 – Updated: 2026-07-28 16:23
VLAI
Summary
sqlite3-ruby has Use-After-Free in SQLite Aggregate Function Callbacks
Details

Summary

Using Database#create_aggregate, #create_aggregate_handler, or Database#define_aggregator to define an aggregate function, and then using an open statement calling that function after the database has been explicitly closed will result in an invalid memory read and a segmentation fault.

Mitigation

Upgrade to sqlite3 gem v2.9.5 or later.

As a workaround, avoid using an aggregate function after closing the database.

Severity

The sqlite3-ruby maintainers assess this as Low severity. It is reliably triggered after GC when code is structured in a particular way. There is no known general exploit that could be used as a denial of service attack.

Severity
2.0 (Low)
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.9.4"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "sqlite3-ruby"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.9.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.9.4"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "sqlite3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.9.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54620"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-28T16:23:57Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n\nUsing `Database#create_aggregate`, `#create_aggregate_handler`, or `Database#define_aggregator` to define an aggregate function, and then using an open statement calling that function after the database has been explicitly closed will result in an invalid memory read and a segmentation fault.\n\n## Mitigation\n\nUpgrade to sqlite3 gem v2.9.5 or later.\n\nAs a workaround, avoid using an aggregate function after closing the database.\n\n## Severity\n\nThe sqlite3-ruby maintainers assess this as Low severity. It is reliably triggered after GC when code is structured in a particular way. There is no known general exploit that could be used as a denial of service attack.",
  "id": "GHSA-j7fr-3v8c-3qc3",
  "modified": "2026-07-28T16:23:57Z",
  "published": "2026-07-28T16:23:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/sqlite3-ruby/security/advisories/GHSA-j7fr-3v8c-3qc3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/sqlite3-ruby/pull/711"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/sqlite3-ruby/commit/b24e1e6076528b7f95f99acf7a81c70d0004c726"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/sqlite3/CVE-2026-54620.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sparklemotion/sqlite3-ruby"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/sqlite3-ruby/releases/tag/v2.9.5"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord/SearchResults?query=CVE-2026-54620"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "sqlite3-ruby has Use-After-Free in SQLite Aggregate Function Callbacks"
}



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