CVE-2026-32944
Parse Server crash via deeply nested query condition operators
EPSS 0.02%
Description
### Impact An unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. ### Patches A depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app. ### Workarounds None.
How to fix CVE-2026-32944
To remediate CVE-2026-32944, upgrade the affected package to a fixed version below.
- —upgrade to 8.6.45 or later
- —upgrade to 9.6.0-alpha.21 or later
Is CVE-2026-32944 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 8.6.45, >= 9.0.0, < 9.6.0
- >= 9.0.0, < 9.6.0-alpha.21
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |