CVE-2026-31856
published 2026-03-11CVE-2026-31856: Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. A SQL injection vulnerability exists in the PostgreSQL…
PriorityP263critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.42%
33.5th percentile
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. A SQL injection vulnerability exists in the PostgreSQL storage adapter when processing Increment operations on nested object fields using dot notation (e.g., stats.counter). The amount value is interpolated directly into the SQL query without parameterization or type validation. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL subqueries to read any data from the database, bypassing CLPs and ACLs. MongoDB deployments are not affected. This vulnerability is fixed in 9.6.0-alpha.3 and 8.6.29.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| parse-community | parse-server | < 8.6.29 | 8.6.29 |
| parse-community | parse-server | — | — |
| parse-community | parse-server | >= 0 < 8.6.29 | 8.6.29 |
| parse-community | parse-server | >= 9.0.0-alpha.1 < 9.6.0-alpha.3 | 9.6.0-alpha.3 |
| parseplatform | parse-server | < 8.6.29 | 8.6.29 |
| parseplatform | parse-server | — | — |
| parseplatform | parse-server | >= 9.0.0 < 9.6.0 | 9.6.0 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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
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OSV
Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
osv·2026-03-11
CVE-2026-31856 [CRITICAL] Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
### Impact
A SQL injection vulnerability exists in the PostgreSQL storage adapter when processing `Increment` operations on nested object fields using dot notation (e.g., `stats.counter`). The `amount` value is interpolated directly into the SQL query without parameterization or type validation. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL subqueries to read any data from the database, bypassing CLPs and ACLs.
MongoDB deployments are not affected.
### Patches
The fix adds type validation to reject non-number values and parameterizes the value in the SQL query instead of interpolating it.
### Workarounds
There is no known workaround.
GHSA
Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
ghsa·2026-03-11
CVE-2026-31856 [CRITICAL] CWE-89 Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
Parse Server vulnerable to SQL injection via `Increment` operation on nested object field in PostgreSQL
### Impact
A SQL injection vulnerability exists in the PostgreSQL storage adapter when processing `Increment` operations on nested object fields using dot notation (e.g., `stats.counter`). The `amount` value is interpolated directly into the SQL query without parameterization or type validation. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL subqueries to read any data from the database, bypassing CLPs and ACLs.
MongoDB deployments are not affected.
### Patches
The fix adds type validation to reject non-number values and parameterizes the value in the SQL query instead of interpolating it.
### Workarounds
There is no known workaround.
No detection rules found.
No public exploits indexed.
2026-03-11
Published