CVE-2026-109302

Parse Server 8.2.2 before 8.6.94 and 9.0.0 before 9.10.1-alpha.14 GraphQL Schema Disclosure via Persisted Queries

At a glance

Severity: MEDIUM 6.3
EPSS: EPSS 0.22 % · percentile 13 (2026-10-28)
State: PUBLISHED
Published: 2026-10-12
Updated: 2026-10-15
Assigner: VulnCheck
NVD status: Awaiting Analysis

Description

Parse Server 8.2.2 before 8.6.94 and 9.0.0 before 9.10.1-alpha.14 applies its GraphQL introspection control only to operation text sent directly with a request, not to operations resolved from Apollo Server's automatic persisted query cache. Unauthenticated attackers holding the public Application Id and client key can replay an introspection query previously cached by a master or maintenance key client to retrieve the schema, including private class and field names.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
CVSS 3.1	LOW 3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	VulnCheck
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)
CVSS 3.1	LOW 3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD · disclosure@vulncheck.com (Secondary)

Weaknesses (CWE)

CWE-863

European references

ENISA EUVD · EUVD-2026-97604
GCVE · GCVE-0-2026-109302

Affected products

Product	Versions
parse-community · parse-server	affected 9.0.0 < 9.10.1-alpha.14 ; unaffected 9.10.1-alpha.14
parse-community · parse-server	affected 8.2.2 < 8.6.94 ; unaffected 8.6.94

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD