CVE-2026-31856Network attack vector

Database disclosure via unparameterized nested-field increment

Published Mar 11, 2026 · Updated Mar 11, 2026

SQL injection in Parse Server before 8.6.29 and 9.0.0 through 9.6.0-alpha.2 allows remote attackers to read database data. The PostgreSQL storage adapter interpolates the nested-field Increment amount directly into SQL without parameterization or numeric type validation. Reachability requires a REST API write request against a PostgreSQL deployment; injected subqueries bypass CLPs and ACLs to read database data.

CVSS severity9.3
Critical
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Parse Server before 8.6.29 and 9.0.0 through 9.6.0-alpha.2 allows remote attackers to read database data. The PostgreSQL storage adapter interpolates the nested-field Increment amount directly into SQL without parameterization or numeric type validation. Reachability requires a REST API write request against a PostgreSQL deployment; injected subqueries bypass CLPs and ACLs to read database data.

The record

CVE
CVE-2026-31856
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.6.29
  2. Affected versionversion=>= 9.0.0 < 9.6.0-alpha.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=< 8.6.29; version=>= 9.0.0 < 9.6.0-alpha.3

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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