{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.1.1-rc.10"
              },
              {
                "fixed": "0.7.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "091f66763ec465fd6a6d28f82ba60bd9354e1a18"
            },
            {
              "fixed": "cfe94c67484270db0f46384bd35cf1fbad8793d5"
            },
            {
              "fixed": "d95c55c64b1b42cc2fd30211a4913f3145156cd4"
            }
          ],
          "repo": "https://github.com/ash-project/ash_sql",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-5jgp-7mhc-6qqh"
  ],
  "database_specific": {
    "cna_assigner": "EEF",
    "cwe_ids": [
      "CWE-943"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78691.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "cfc7da474c5be2190fd62664a83a689377a8d512"
          },
          {
            "fixed": "d95c55c64b1b42cc2fd30211a4913f3145156cd4"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "Improper Neutralization of Special Elements in Data Query Logic vulnerability in ash-project ash_sql allows a user who supplies a search term to contains/2, string_starts_with/2, or string_ends_with/2 to inject live SQL LIKE wildcards, turning a literal substring search into an attacker-controlled pattern match.\n\nThe escape helpers in AshSql.Expr prefix % and _ with a backslash but never escape a backslash already present in the input. Because backslash is the default LIKE escape character, the escaping defeats itself: the input \\% becomes the pattern fragment \\\\%, where \\\\ is a literal backslash and the attacker's % remains a live wildcard. The search value stays parameterized, so this is confined to the LIKE pattern grammar rather than full SQL. An attacker can widen matches to probe values, slip past a negated contains(...) guard, or crash the query with a trailing lone backslash.\n\nThis issue affects ash_sql: from 0.1.1-rc.10 before 0.7.1.",
  "id": "CVE-2026-78691",
  "modified": "2026-09-03T03:30:51.875098169Z",
  "published": "2026-08-30T11:55:20.331Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cna.erlef.org/cves/CVE-2026-78691.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-78691"
    },
    {
      "type": "WEB",
      "url": "https://repo.hex.pm"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78691.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/ash-project/ash_sql/security/advisories/GHSA-5jgp-7mhc-6qqh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78691"
    },
    {
      "type": "FIX",
      "url": "https://github.com/ash-project/ash_sql/commit/d95c55c64b1b42cc2fd30211a4913f3145156cd4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ash-project/ash_sql"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Unescaped backslash allows LIKE wildcard injection in AshSql string search"
}