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Vulnerability details: VCID-1j65-rdzh-6bc3
Vulnerability ID VCID-1j65-rdzh-6bc3
Aliases CVE-2026-31871
GHSA-gqpp-xgvh-9h7h
Summary Parse Server vulnerable to SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-31871
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-31871
epss 0.00042 https://api.first.org/data/v1/epss?cve=CVE-2026-31871
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-gqpp-xgvh-9h7h
cvssv4 9.3 https://github.com/parse-community/parse-server
generic_textual CRITICAL https://github.com/parse-community/parse-server
cvssv4 9.3 https://github.com/parse-community/parse-server/releases/tag/8.6.31
generic_textual CRITICAL https://github.com/parse-community/parse-server/releases/tag/8.6.31
ssvc Track https://github.com/parse-community/parse-server/releases/tag/8.6.31
cvssv4 9.3 https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
generic_textual CRITICAL https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
ssvc Track https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
cvssv3.1_qr CRITICAL https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
cvssv4 9.3 https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
generic_textual CRITICAL https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
cvssv4 9.3 https://nvd.nist.gov/vuln/detail/CVE-2026-31871
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2026-31871
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-31871
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/releases/tag/8.6.31
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
CVE-2026-31871 https://nvd.nist.gov/vuln/detail/CVE-2026-31871
GHSA-gqpp-xgvh-9h7h https://github.com/advisories/GHSA-gqpp-xgvh-9h7h
GHSA-gqpp-xgvh-9h7h https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.31
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:09:48Z/ Found at https://github.com/parse-community/parse-server/releases/tag/8.6.31
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:09:48Z/ Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:09:48Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-31871
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.13313
EPSS Score 0.00042
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:51:36.355226+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/parse-server/CVE-2026-31871.yml 38.6.0