High severity · published Oct 25, 2026
CVE-2026-116165
Parse Server 9.0.0 before 9.10.4-alpha.4 Unauthenticated Class Schema Deletion on MongoDB
New
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
Parse Server before 8.6.101 and 9.0.0 before 9.10.4-alpha.4 contains a missing authorization vulnerability on MongoDB deployments that lets clients without the master key delete the stored schema of any class. Unauthenticated attackers can send REST API delete requests targeting the internal _SCHEMA collection to remove field definitions, class-level permissions, and protected fields, exposing data to unauthorized reads and modifications.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
parse-server · parse-community
9.0.0 before 9.10.4-alpha.4; before 8.6.101 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116165
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116165
github.com
https://github.com/parse-community/parse-server/security/advisories/GHSA-qmg9-m772-5rm7
www.vulncheck.com
https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.4-alpha.4-unauthenticated-class-schema-deletion-on-mongodb
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