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CVE-2026-50008

Parse Server: Server option routeAllowList is bypassable through batch sub-requests

MEDIUM
6.9
CVSS Score
Published: June 12, 2026 at 06:22 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorParse Server

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From version 9.8.0 to before version 9.9.1-alpha.3, the routeAllowList server option restricts external client access to a configured list of REST API routes. The check is only enforced as Express middleware against the outer HTTP request URL, so the /batch handler dispatches each sub-request to the internal router without re-running the allow-list check. An external caller whose outer route matches batch can issue batch sub-requests to any REST API route that the operator omitted from the allow-list. Authentication, ACL, CLP, and other inner-route authorization controls still apply — only the operator-configured route firewall is bypassed. This issue has been patched in version 9.9.1-alpha.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Parse Server· Parse Communitynpm
90%
>= 9.8.0, < 9.9.1-alpha.3
Affected range stops below 9.9.1-alpha.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRM
Source: cverecord
https://github.com/parse-community/parse-server/security/advisories/GHSA-p84r-h6rx-f2xr
x_refsource_MISC
Source: cverecord
https://github.com/parse-community/parse-server/pull/10482

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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