CVE-2026-44635— Kysely 安全漏洞

Kysely: JSON-path traversal injection via unsanitized path-leg metacharacters in `JSONPathBuilder.key()` / `.at()`

Kysely is a type-safe TypeScript SQL query builder. From 0.26.0 to 0.28.16, DefaultQueryCompiler.visitJSONPathLeg does not escape JSON-path metacharacters (., [, ], *, **, ?). When attacker-controlled input flows into eb.ref(col, '->$').key(input) or .at(input) — including type-safe code where the JSON column is shaped like Record<string, T> so K extends string is the inferred type — every dot becomes a path-leg separator, letting an attacker traverse from the intended key into sibling and child fields the developer never meant to expose. The result is read access (and, in update statements, write access) to JSON sub-fields outside the intended scope across MySQL, PostgreSQL ->$/->>$, and SQLite. This vulnerability is fixed in 0.28.17.

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

对路径名的限制不恰当(路径遍历)

Kysely 安全漏洞

Kysely是Kysely开源的一个类型安全的TypeScript SQL查询构建器。 Kysely 0.26.0至0.28.16版本存在安全漏洞，该漏洞源于DefaultQueryCompiler.visitJSONPathLeg未转义JSON路径元字符，导致攻击者可通过控制输入遍历到开发者未意图暴露的兄弟和子字段，造成JSON子字段的读写访问。

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