GHSA-hm3f-q6rw-m6wh

Suggest an improvement
Source
https://github.com/advisories/GHSA-hm3f-q6rw-m6wh
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-hm3f-q6rw-m6wh/GHSA-hm3f-q6rw-m6wh.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-hm3f-q6rw-m6wh
Aliases
Published
2026-03-09T17:41:55Z
Modified
2026-03-16T03:01:05Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server: `PagesRouter` path traversal allows reading files outside configured pages directory
Details

Impact

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 affects any Parse Server deployment with the pages feature enabled (pages.enableRouter: true). Exploitation requires a sibling directory of pagesPath whose name begins with the same string as the pages directory name.

Patches

The fix enforces a path separator boundary in the check, ensuring resolved paths must be strictly inside the pagesPath directory.

Workarounds

Ensure the pagesPath directory has no sibling directories whose names begin with the same prefix. For example, if pagesPath is /srv/pages, ensure no directory like /srv/pages-backup or /srv/pages_old exists alongside it.

References

Database specific
{
    "cwe_ids":  [
        "CWE-22"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-09T17:41:55Z",
    "nvd_published_at":  "2026-03-07T17:15:52Z",
    "severity":  "MODERATE"
}
References

Affected packages

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.6.8

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-hm3f-q6rw-m6wh/GHSA-hm3f-q6rw-m6wh.json"

npm / parse-server

Package

Affected ranges

Type
SEMVER
Events
Introduced
9.0.0-alpha.1
Fixed
9.5.0-alpha.8

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-hm3f-q6rw-m6wh/GHSA-hm3f-q6rw-m6wh.json"