CVE-2026-30228 json
Parse Server: File creation and deletion bypasses `readOnlyMasterKey` write restriction
published 2026-03-06 8 mo ago modified 2026-09-08 2 mo ago also BIT-parse-2026-30228 , EUVD-2026-10059 , GHSA-xfh7-phr7-gr2x
- cvss
- 4.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.5 and 9.5.0-alpha.3, the readOnlyMasterKey can be used to create and delete files via the Files API (POST /files/:filename, DELETE /files/:filename). This bypasses the read-only restriction which violates the access scope of the readOnlyMasterKey. Any Parse Server deployment that uses readOnlyMasterKey and exposes the Files API is affected. An attacker with access to the readOnlyMasterKey can upload arbitrary files or delete existing files. This issue has been patched in versions 8.6.5 and 9.5.0-alpha.3.
Patch / fix
- npm parse-server 8.6.5, 9.5.0-alpha.3
- bitnami parse 9.5.0
- parseplatform parse-server 8.6.5, 9.5.0-alpha.3
- parseplatform parse_server 8.6.5, 9.5.0-alpha.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | parse-server | >=9.0.0, <9.5.0-alpha.3 <8.6.5 |
9.5.0-alpha.3 8.6.5 |
| bitnami | parse | <9.5.0 |
9.5.0 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/parse-community/parse-server/security/advisories/GHSA-xfh7-phr7-gr2x
web, vendor-advisory, advisory
-
github.com
/parse-community/parse-server/releases/tag/8.6.5
web, product, release-notes, article
-
github.com
/parse-community/parse-server/releases/tag/9.5.0-alpha.3
web, product, release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-30228
advisory, web
-
github.com
/parse-community/parse-server
package
Sources
- CVE List CVE-2026-30228
- GitHub Advisory GHSA-xfh7-phr7-gr2x
- NVD CVE-2026-30228
- OSV BIT-parse-2026-30228
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.