CVE-2026-31872 json
Parse Server has a protected fields bypass via dot-notation in query and sort
published 2026-03-11 8 mo ago modified 2026-09-08 2 mo ago also BIT-parse-2026-31872 , EUVD-2026-11279 , GHSA-r2m8-pxm9-9c4g
- cvss
- 7.5
- 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 36%
- 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 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.
Patch / fix
- npm parse-server 8.6.32, 9.6.0-alpha.6
- bitnami parse 8.6.32, 9.6.0
- parseplatform parse-server 8.6.32, 9.6.0-alpha.6
- parseplatform parse_server 8.6.32, 9.6.0-alpha.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | parse-server | >=9.0.0-alpha.1, <9.6.0-alpha.6 <8.6.32 |
9.6.0-alpha.6 8.6.32 |
| bitnami | parse | <8.6.32 >=9.0.0, <9.6.0 |
8.6.32 9.6.0 |
Affected products
- parse-community parse-server
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
web, patch, vendor-advisory, advisory
-
github.com
/parse-community/parse-server/releases/tag/8.6.32
web, product, release-notes, article
-
github.com
/parse-community/parse-server/releases/tag/9.6.0-alpha.6
web, product, release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-31872
advisory, web
-
github.com
/parse-community/parse-server
package
Sources
- CVE List CVE-2026-31872
- GitHub Advisory GHSA-r2m8-pxm9-9c4g
- NVD CVE-2026-31872
- OSV BIT-parse-2026-31872
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.