SQL Injection in PostgreSQL storage adapter (CVE-2026-31871)
Summary
SQL injection in PostgreSQL storage adapter (CVE-2026-31871). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 9.6.0-alpha.5 or later.
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-31871 has been found in PostgreSQL storage adapter.
Risk of unauthorized operations or information disclosure.
What to do: upgrade PostgreSQL storage adapter to 9.6.0-alpha.5 or later.
If unsure, ask your IT team or search "PostgreSQL storage adapter CVE-2026-31871" on the vendor's site.
CVE-2026-31871 (PostgreSQL storage adapter) — CWE-89
Patched: 9.6.0-alpha.5 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
SQL injection (CWE-89) exists in PostgreSQL storage adapter.
Check the vendor advisory for the affected versions of PostgreSQL storage adapter.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 9.6.0-alpha.5.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで PostgreSQL storage adapter を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade PostgreSQL storage adapter to 9.6.0-alpha.5ステージング環境で 9.6.0-alpha.5 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com
- web github.com