CVE-2026-30848 Parse Server: `PagesRouter` path traversal allows reading files outside configured pages directory
Unauthenticated attackers can read files outside the configured pages directory via path traversal in Parse Server's PagesRouter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-30848?
CVE-2026-30848 is a medium-severity path traversal vulnerability in Parseplatform Parse-Server, published on 7 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.8 and 9.5.0-alpha.8, the PagesRouter static file serving route is vulnerable to a path traversal attack that allows unauthenticated reading of files outside the configured pagesPath directory. The boundary check uses a string prefix comparison without enforcing a directory separator boundary. An attacker can use path traversal sequences to access files in sibling directories whose names share the same prefix as the pages directory (e.g. pages-secret starts with pages). This issue has been patched in versions 8.6.8 and 9.5.0-alpha.8.
Weakness: CWE-22
Which versions are affected by CVE-2026-30848?
5 open source packages ship an affected version, including parse-server and parse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
parse-server npm | All versions | 8.6.8 |
parse-server npm | All versions | 8.6.8 |
parse-server npm | From 9.0.0-alpha.1 | 9.5.0-alpha.8 |
parse-server npm | From 9.0.0-alpha.1 | 9.5.0-alpha.8 |
parse Bitnami | All versions | 9.5.0 |
Products include Parseplatform Parse-Server.
How do I fix CVE-2026-30848?
Upgrade parse-server to a fixed version for your release line: 8.6.8 or 9.5.0-alpha.8.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-30848 being exploited?
There is no known exploitation of CVE-2026-30848 in the wild and no public exploit code.
Other vulnerabilities in Parseplatform Parse-Server
- CVE-2026-30966 Parse Server role escalation and CLP bypass via direct `_Join` table write
- CVE-2024-27298 Parse Server literalizeRegexPart SQL Injection
- CVE-2022-24760 Command Injection in Parse server
- CVE-2026-30965 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter
- CVE-2023-36475 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Sources
Also known as BIT-parse-2026-30848, GHSA-hm3f-q6rw-m6wh.