CVE-2026-31828— Parse Server has an LDAP injection via unsanitized user input in DN and group filter construction
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I. Basic Information for CVE-2026-31828
Vulnerability Information
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Vulnerability Title
Parse Server has an LDAP injection via unsanitized user input in DN and group filter construction
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
LDAP查询中使用的特殊元素转义处理不恰当(LDAP注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.5.2-alpha.13之前版本和8.6.26之前版本存在注入漏洞，该漏洞源于LDAP身份验证适配器对用户输入处理不当，可能导致LDAP注入和权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| parse-community | parse-server | >= 9.0.0 < 9.5.2-alpha.13 | - |
II. Public POCs for CVE-2026-31828
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|---|
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- Release 8.6.26 · parse-community/parse-server · GitHubx_refsource_MISC
- Release 9.5.2-alpha.13 · parse-community/parse-server · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-31828
Same Patch Batch · parse-community · 2026-03-10 · 14 CVEs total
| CVE-2026-30966 | 10.0 CRITICAL | Parse Server role escalation and CLP bypass via direct `_Join` table write |
| CVE-2026-30939 | Parse Server has Denial of Service (DoS) and Cloud Function Dispatch Bypass via Prototype | |
| CVE-2026-30941 | Parse Server has a NoSQL injection via token type in password reset and email verification | |
| CVE-2026-30938 | Parse Server has denylist `requestKeywordDenylist` keyword scan bypass through nested obje | |
| CVE-2026-30948 | Parse Server has stored cross-site scripting (XSS) via SVG file upload | |
| CVE-2026-30949 | Parse Server is missing audience validation in Keycloak authentication adapter | |
| CVE-2026-30946 | Parse Server affected by denial-of-service via unbounded query complexity in REST and Grap | |
| CVE-2026-30947 | Parse Server ha a bypass of class-level permissions in LiveQuery | |
| CVE-2026-31800 | Parse Server: Classes `_GraphQLConfig` and `_Audience` master key bypass via generic class | |
| CVE-2026-30972 | Parse Server has a rate limit bypass via batch request endpoint | |
| CVE-2026-30962 | Parse Server has a protected fields bypass via logical query operators | |
| CVE-2026-30967 | Parse Server OAuth2 authentication adapter account takeover via identity spoofing | |
| CVE-2026-30965 | Parse Server session token exfiltration via `redirectClassNameForKey` query parameter |
IV. Related Vulnerabilities
Same product: parse-server
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same vendor: parse-community
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
Same weakness: CWE-90
- CVE-2026-40606
ProxyAuth Addon LDAP Injection in mitmproxy - CVE-2026-40459
LDAP Injection in PAC4J - CVE-2026-40193
Maddy Mail Server: LDAP Filter Injection via Unsanitized Use - CVE-2026-0636
LDAP Injection Vulnerability in LDAPStoreHelper.java - CVE-2026-39962
LDAP injection in MISP ApacheAuthenticate when using a user-
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