CVE-2026-31871
moderate-risk
Published 2026-03-11
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.5 and 8.6.31, 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 sub-key name is interpolated directly into SQL string literals without escaping. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL via a crafted sub-key name containing single quotes, potentially executing commands or reading data from the database, bypassing CLPs and ACLs. Only Postgres deployments are affected. This vulnerability is fixed in 9.6.0-alpha.5 and 8.6.31.
Do I need to act?
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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Fix available
Upgrade to: 44d6ff4d4f0562f3845cf0a5b5434be1afa5aadd
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (5)
Affected Vendors
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
0/34 · Minimal
Exposure
12/34 · Low