Vulnerability-Lookup

CVE-2026-54658 (GCVE-0-2026-54658)

Vulnerability from cvelistv5 – Published: 2026-07-28 22:18 – Updated: 2026-08-04 20:39

Title

@hypequery/clickhouse has SQL Injection in parameter escaping that allows arbitrary SQL execution

Summary

Hypequery is a TypeScript semantic layer for ClickHouse. Prior to 2.5.1, escapeValue() in packages/clickhouse/src/core/utils.ts did not escape backslashes before single quotes during parameter substitution, allowing attacker controlled query parameters with a trailing backslash to escape the closing quote and inject arbitrary SQL. This issue is fixed in version 2.0.2. Version 2.0.2 fixes string parameters, while version 2.5.1 fixes all known vectors. Upgrading to 2.5.1 or later is the only complete fix. In versions 2.0.2 through 2.5.0, serializing non-scalar parameters with JSON.stringify() before passing them is a workaround for the object/array vector only.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

8 references

URL	Tags
https://github.com/hypequery/hypequery/security/a…	x_refsource_CONFIRM
https://github.com/hypequery/hypequery/pull/349	x_refsource_MISC
https://github.com/hypequery/hypequery/commit/287…	x_refsource_MISC
https://github.com/hypequery/hypequery/commit/2dc…	x_refsource_MISC
https://github.com/hypequery/hypequery/commit/4df…	x_refsource_MISC
https://github.com/hypequery/hypequery/blob/main/…	x_refsource_MISC
https://github.com/hypequery/hypequery/releases/t…	x_refsource_MISC
https://github.com/hypequery/hypequery/releases/t…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
hypequery	hypequery	Affected: < 2.5.1

Show details on NVD website

JSON

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GHSA-6WCC-39RP-HH9P

Vulnerability from github – Published: 2026-07-28 22:19 – Updated: 2026-08-04 20:34

Summary

@hypequery/clickhouse has SQL Injection in parameter escaping that allows arbitrary SQL execution

Details

A SQL injection vulnerability exists in the escapeValue() function used for parameter substitution. escapeValue() dispatches on the type of the parameter value, and two of its branches failed to escape safely. An attacker who can control a parameter value can terminate the enclosing string literal and have the rest of the value parsed as SQL.

Vector 1 - string parameters. Fixed in 2.0.2. The string branch escaped ' as '' but left \\ untouched. ClickHouse honours C-style backslash escapes as well as SQL-standard quote doubling, so a value ending in an odd number of backslashes escapes the closing quote and the next parameter lands outside the literal:

where('a', 'eq', 'x\\')          ->   WHERE a = 'x\\' AND b = ' OR 1=1 --'

Vector 2 - object and array parameters. Fixed in 2.5.1, NOT in 2.0.2. The final branch of the same function rendered non-scalar values as `'${JSON.stringify(value)}'` with no escaping at all. JSON has no reason to escape the apostrophe, so any nested string containing ' terminates the literal:

where('meta', 'eq', { k: \"x' OR 1=1 -- \" })
                                ->   WHERE meta = '{\"k\":\"x' OR 1=1 -- \"}'

The 2.0.2 patch changed only the string branch and did not address this. Vector 2 remained exploitable in 2.0.2, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.0, 2.3.0, 2.4.0 and 2.5.0 - every release this advisory previously reported as patched.

Who is impacted. Any application on a version below 2.5.1 that passes user-controlled input as a query parameter. Both vectors are reachable through the documented public API: .where(column, operator, value), the in operator, and adapter.render() / rawQuery().

Schema type declarations do not mitigate vector 2. createQueryBuilder().table() builds its state with an empty column map, so the filter validator has no declared type to check against and returns without validating. Even where a schema is supplied, only String, Int32, Int64, Float64 and Date columns are type-checked - Map, Array, Bool, UUID, DateTime, UInt*, Enum and Nullable columns are not - and any column name containing a . skips validation entirely.

Patches

Upgrade to 2.5.1 or later. Both vectors are closed there.

Vector 1 - fixed in 2.0.2 by 2dc1df7bae (the referenced 4dfa9d77 is the same change on the pull-request branch). Escapes backslashes before escaping single quotes.
Vector 2 - fixed in 2.5.1 by 2879161a81, which routes the serialised JSON back through escapeValue() so nested quotes are doubled. The same commit also rejects non-finite numbers and invalid Date values instead of emitting them into the query.

For anyone auditing the history: the vector-2 fix is bundled inside 2879161a81, whose commit message is \"parenthesize logical groups in WHERE to preserve AND/OR precedence (#349)\". Commit 4a1d4e38aa (#350), whose message does describe the escaping fix, changes only a bigint branch - the escaping fix is already present in its parent.

Workarounds

Upgrading is the only complete fix.

For vector 2 only, applications on 2.0.2–2.5.0 that cannot upgrade can serialise non-scalar parameters themselves and pass the resulting string. That routes the value through the string branch, which is correctly escaped from 2.0.2 onward:

.where('meta', 'eq', JSON.stringify(value))   // safe on >= 2.0.2

There is no workaround for vector 1 other than upgrading to 2.0.2 or later.

Do not substitute application-level input validation or sanitisation for either fix. Correct escaping depends on the literal context the library constructs, so the library has to own it.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

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  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 2.0.2"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@hypequery/clickhouse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54658"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-89"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-28T22:19:23Z",
    "nvd_published_at": "2026-07-28T23:17:08Z",
    "severity": "CRITICAL"
  },
  "details": "A SQL injection vulnerability exists in the `escapeValue()` function used for parameter substitution. `escapeValue()` dispatches on the type of the parameter value, and two of its branches failed to escape safely. An attacker who can control a parameter value can terminate the enclosing string literal and have the rest of the value parsed as SQL.\n\n**Vector 1 - string parameters. Fixed in 2.0.2.** The string branch escaped `\u0027` as `\u0027\u0027` but left `\\\\` untouched. ClickHouse honours C-style backslash escapes as well as SQL-standard quote doubling, so a value ending in an odd number of backslashes escapes the closing quote and the next parameter lands outside the literal:\n\n```\nwhere(\u0027a\u0027, \u0027eq\u0027, \u0027x\\\\\u0027)          -\u003e   WHERE a = \u0027x\\\\\u0027 AND b = \u0027 OR 1=1 --\u0027\n```\n\n**Vector 2 - object and array parameters. Fixed in 2.5.1, NOT in 2.0.2.** The final branch of the same function rendered non-scalar values as `` `\u0027${JSON.stringify(value)}\u0027` `` with no escaping at all. JSON has no reason to escape the apostrophe, so any nested string containing `\u0027` terminates the literal:\n\n```\nwhere(\u0027meta\u0027, \u0027eq\u0027, { k: \\\"x\u0027 OR 1=1 -- \\\" })\n                                -\u003e   WHERE meta = \u0027{\\\"k\\\":\\\"x\u0027 OR 1=1 -- \\\"}\u0027\n```\n\nThe 2.0.2 patch changed only the string branch and did not address this. Vector 2 remained exploitable in **2.0.2, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.0, 2.3.0, 2.4.0 and 2.5.0** - every release this advisory previously reported as patched.\n\n**Who is impacted.** Any application on a version below 2.5.1 that passes user-controlled input as a query parameter. Both vectors are reachable through the documented public API: `.where(column, operator, value)`, the `in` operator, and `adapter.render()` / `rawQuery()`.\n\n**Schema type declarations do not mitigate vector 2.** `createQueryBuilder().table()` builds its state with an empty column map, so the filter validator has no declared type to check against and returns without validating. Even where a schema is supplied, only `String`, `Int32`, `Int64`, `Float64` and `Date` columns are type-checked - `Map`, `Array`, `Bool`, `UUID`, `DateTime`, `UInt*`, `Enum` and `Nullable` columns are not - and any column name containing a `.` skips validation entirely.\n\n## Patches\n\nUpgrade to **2.5.1 or later**. Both vectors are closed there.\n\n- **Vector 1** - fixed in **2.0.2** by `2dc1df7bae` (the referenced `4dfa9d77` is the same change\n  on the pull-request branch). Escapes backslashes before escaping single quotes.\n- **Vector 2** - fixed in **2.5.1** by `2879161a81`, which routes the serialised JSON back through  `escapeValue()` so nested quotes are doubled. The same commit also rejects non-finite numbers and  invalid `Date` values instead of emitting them into the query.\n\nFor anyone auditing the history: the vector-2 fix is bundled inside `2879161a81`, whose commit message is *\\\"parenthesize logical groups in WHERE to preserve AND/OR precedence (#349)\\\"*. Commit `4a1d4e38aa` (#350), whose message *does* describe the escaping fix, changes only a `bigint` branch - the escaping fix is already present in its parent.\n\n## Workarounds\n\nUpgrading is the only complete fix.\n\nFor **vector 2** only, applications on 2.0.2\u20132.5.0 that cannot upgrade can serialise non-scalar parameters themselves and pass the resulting string. That routes the value through the string branch, which is correctly escaped from 2.0.2 onward:\n\n```js\n.where(\u0027meta\u0027, \u0027eq\u0027, JSON.stringify(value))   // safe on \u003e= 2.0.2\n```\n\nThere is no workaround for **vector 1** other than upgrading to 2.0.2 or later.\n\nDo not substitute application-level input validation or sanitisation for either fix. Correct escaping depends on the literal context the library constructs, so the library has to own it.",
  "id": "GHSA-6wcc-39rp-hh9p",
  "modified": "2026-08-04T20:34:06Z",
  "published": "2026-07-28T22:19:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/security/advisories/GHSA-6wcc-39rp-hh9p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54658"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/pull/349"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/commit/2879161a810fed2c2222f785816ff05510976960"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/commit/2dc1df7bae"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/commit/4dfa9d77d70a08b970e722268b75ca7d13db0bdf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hypequery/hypequery"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/blob/main/packages/clickhouse/CHANGELOG.md#202"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/releases/tag/@hypequery/clickhouse@2.0.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hypequery/hypequery/releases/tag/@hypequery/clickhouse@2.5.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@hypequery/clickhouse has SQL Injection in parameter escaping that allows arbitrary SQL execution"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

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