CVE-2026-30848

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, 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.

How to fix CVE-2026-30848

To remediate CVE-2026-30848, upgrade the affected package to a fixed version below.

• —upgrade to 9.5.0 or later
• —upgrade to 8.6.8 or later

Is CVE-2026-30848 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 9.5.0
• from 0, < 8.6.8

CVSS scores

References (3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-30848
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/security/advisories/GHSA-hm3f-q6rw-m6wh