Parse Server vulnerable to LDAP injection via unsanitized user input in DN and group filter construction

高 8.8CVE-2026-31828 · BIT-parse-2026-31828 · GHSA-7m6r-fhh7-r47c · 10/03/2026 公開 · 17/06/2026 更新

要点

CVE-2026-31828 は parse-server (parseplatform), parse-server に影響する深刻度「高」 (CVSS 8.8) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.45%（全脆弱性の 39.0% より高い）。
対処：9.5.2, 8.6.26, 9.5.2-alpha.13 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
parse-server parseplatform	`= 9.5.2≥ 9.0.0, < 9.5.2< 8.6.26`	`9.5.28.6.26`
parse-server npm	`≥ 9.0.0-alpha.1, < 9.5.2-alpha.13< 8.6.26`	`9.5.2-alpha.138.6.26`

概要

Impact

The LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input (authData.id) is interpolated directly into LDAP Distinguished Names (DN) and group search filters without escaping special characters. This allows an attacker with valid LDAP credentials to manipulate the bind DN structure and to bypass group membership checks. This enables privilege escalation from any authenticated LDAP user to a member of any restricted group.

The vulnerability affects Parse Server deployments that use the LDAP authentication adapter with group-based access control.

Patches

The vulnerability is fixed by escaping user input before interpolation into DN strings (per RFC 4514) and LDAP filter strings (per RFC 4515).

Workarounds

There is no known workaround.

References

GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.26

NVD の説明

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.13 and 8.6.26, the LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input (authData.id) is interpolated directly into LDAP Distinguished Names (DN) and group search filters without escaping special characters. This allows an attacker with valid LDAP credentials to manipulate the bind DN structure and to bypass group membership checks. This enables privilege escalation from any authenticated LDAP user to a member of any restricted group. The vulnerability affects Parse Server deployments that use the LDAP authentication adapter with group-based access control. This vulnerability is fixed in 9.5.2-alpha.13 and 8.6.26.