CVE-2026-31871: Parseplatform Parse-server SQL injection (CVSS 9.8)

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Parseplatform Parse-server9.6.0 · ≥ 9.0.0 < 9.6.0 · < 8.6.31

Remediation

Fixed in

Parseplatform Parse-server≥ 9.6.0

Patch & vendor advisories

https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h

References

https://github.com/parse-community/parse-server/releases/tag/8.6.31ProductRelease Notes
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5ProductRelease Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7hPatchVendor Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2026-31871 being actively exploited?

CVE-2026-31871 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.54%.

How severe is CVE-2026-31871?

CVE-2026-31871 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.54% probability of exploitation.

Which products are affected by CVE-2026-31871?

Affected products include Parseplatform Parse-server.

How do I fix CVE-2026-31871?

Upgrade affected software to a fixed version, for example Parseplatform Parse-server 9.6.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-31871 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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