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Vulnerability record · CVE-2026-54658 · published 28 July 2026

CVE-2026-54658: SQL injection vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.82% · top 44.6% CWE-89 · SQL injection Deferred
9.8CVSS 3.1 base score
0.82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
4 Aug 2026Last modified by NVD

Description

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.

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

References

LinkTags
https://github.com/hypequery/hypequery/blob/main/packages/clickhouse/CHANGELOG.md#202
https://github.com/hypequery/hypequery/commit/2879161a810fed2c2222f785816ff05510976960
https://github.com/hypequery/hypequery/commit/2dc1df7bae
https://github.com/hypequery/hypequery/commit/4dfa9d77d70a08b970e722268b75ca7d13db0bdf
https://github.com/hypequery/hypequery/pull/349
https://github.com/hypequery/hypequery/releases/tag/@hypequery/[email protected]
https://github.com/hypequery/hypequery/releases/tag/@hypequery/[email protected]
https://github.com/hypequery/hypequery/security/advisories/GHSA-6wcc-39rp-hh9p

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Source: NIST National Vulnerability Database (record CVE-2026-54658), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.