Parse Server: `PagesRouter` path traversal allows reading files outside configured pages directory
Priority LOW 28CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00347 28th percentileScored 2026-11-07
Fix Fixed parse-server (parse-community): 8.6.8, 9.5.0-alpha.8parse-server (npm): 8.6.8, 9.5.0-alpha.8
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| parse-community | parse-server | before 8.6.8; before 9.5.0-alpha.8 | 8.6.8, 9.5.0-alpha.8 | Patch available | CNA |
| — | parse-server (npm) | before 8.6.8 | 8.6.8 | Patch available | GHSA-hm3f-q6rw-m6wh |
| — | parse-server (npm) | 9.0.0-alpha.1 to before 9.5.0-alpha.8 | 9.5.0-alpha.8 | Patch available | GHSA-hm3f-q6rw-m6wh |
- parse-server Vendorparse-community Affected before 8.6.8; before 9.5.0-alpha.8 Fixed in 8.6.8, 9.5.0-alpha.8 Patch available CNA
- parse-server (npm) Vendor— Affected before 8.6.8 Fixed in 8.6.8 Patch available GHSA-hm3f-q6rw-m6wh
- parse-server (npm) Vendor— Affected 9.0.0-alpha.1 to before 9.5.0-alpha.8 Fixed in 9.5.0-alpha.8 Patch available GHSA-hm3f-q6rw-m6wh
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* | before 8.6.8; 9.0.0 to before 9.5.0 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1:*:*:*:node.js:*:* | 9.5.0 alpha1 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2:*:*:*:node.js:*:* | 9.5.0 alpha2 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3:*:*:*:node.js:*:* | 9.5.0 alpha3 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha4:*:*:*:node.js:*:* | 9.5.0 alpha4 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha5:*:*:*:node.js:*:* | 9.5.0 alpha5 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha6:*:*:*:node.js:*:* | 9.5.0 alpha6 | Vulnerable | parse-community |
| cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha7:*:*:*:node.js:*:* | 9.5.0 alpha7 | Vulnerable | parse-community |
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:* Versions before 8.6.8; 9.0.0 to before 9.5.0 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1:*:*:*:node.js:*:* Versions 9.5.0 alpha1 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2:*:*:*:node.js:*:* Versions 9.5.0 alpha2 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3:*:*:*:node.js:*:* Versions 9.5.0 alpha3 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha4:*:*:*:node.js:*:* Versions 9.5.0 alpha4 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha5:*:*:*:node.js:*:* Versions 9.5.0 alpha5 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha6:*:*:*:node.js:*:* Versions 9.5.0 alpha6 Vulnerable ·parse-community
- cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha7:*:*:*:node.js:*:* Versions 9.5.0 alpha7 Vulnerable ·parse-community
Remediation
- Fix · CNA parse-server (parse-community) Fixed in 8.6.8, 9.5.0-alpha.8
- Fix · GHSA-hm3f-q6rw-m6wh parse-server (npm) Fixed in 8.6.8 Advisory →
- Fix · GHSA-hm3f-q6rw-m6wh parse-server (npm) Fixed in 9.5.0-alpha.8 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30848
- 2026-10-03 Alias added: GHSA-hm3f-q6rw-m6wh
References
More parse-community Parse-server vulnerabilities
- TI-2022-08574 Command Injection in Parse server CVSS 3.1CRITICAL 10.0
- TI-2024-18136 Parse Server literalizeRegexPart SQL Injection CVSS 3.1CRITICAL 10.0
- TI-2022-18768 Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser CVSS 3.1CRITICAL 9.8
- TI-2024-31550 Parse Server's custom object ID allows to acquire role privileges CVSS 3.1HIGH 8.1
- TI-2023-18316 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution CVSS 3.1CRITICAL 9.8
- TI-2026-23790 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter CVSS 4.0CRITICAL 9.9
Sources
- CVE-2026-30848 · CVE Program
- CVE-2026-30848 · NVD
- FIRST EPSS
- GHSA-hm3f-q6rw-m6wh · GitHub Advisory Database · CC BY 4.0
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