CVE-2026-34595
EPSS 0.03%Parse Server has a LiveQuery protected-field guard bypass via array-like logical operator value
描述
### Impact An authenticated user with `find` class-level permission can bypass the `protectedFields` class-level permission setting on LiveQuery subscriptions. By sending a subscription with a `$or`, `$and`, or `$nor` operator value as a plain object with numeric keys and a `length` property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. ### Patches The fix validates that `$or`, `$and`, and `$nor` operator values are arrays in the LiveQuery subscription handler, the query depth checker, and the protected-field guard. As defense in depth, the LiveQuery query evaluator also rejects non-array values for these operators. ### Workarounds There is no known workaround.
受影響套件(2)
- Bitnami/parsefrom 0, < 8.6.70, >= 9.0.0, < 9.7.0
- npm/parse-server>= 9.0.0, < 9.7.0-alpha.16
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
參考連結(7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-34595
- PATCHhttps://github.com/parse-community/parse-server
- WEBhttps://github.com/parse-community/parse-server/commit/f63fd1a3fe0a7c1c5fe809f01b0e04759e8c9b98
- WEBhttps://github.com/parse-community/parse-server/commit/ffad0ec6b971ee0dd9545e1bf1fb34ddebf275c2
- WEBhttps://github.com/parse-community/parse-server/pull/10350
- WEBhttps://github.com/parse-community/parse-server/pull/10351
- WEBhttps://github.com/parse-community/parse-server/security/advisories/GHSA-mmg8-87c5-jrc2