CVE-2026-121414

Description

Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.

References

• https://github.com/parse-community/parse-server/pull/10802
• https://github.com/parse-community/parse-server/pull/10803
• https://github.com/parse-community/parse-server/security/advisories/GHSA-wc3c-6843-q7mv
• https://www.vulncheck.com/advisories/parse-server-before-8.6.110-and-9.0.0-before-9.10.6-alpha.2-denial-of-service-via-aftersave-pointer-update