BIT-PARSE-2026-109954 Parse Server 9.0.0 before 9.10.2 Transactional Batch Request Write Interference

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

Race Condition

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Race Condition via createTransactionalSession in DatabaseController.js, where a transactional batch request shares its...

CVE-2026-109954

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954 Parse Server 9.0.0 before 9.10.2-alpha.5 Transactional Batch Request Write Interference

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954 Parse Server 9.0.0 before 9.10.2-alpha.5 Transactional Batch Request Write Interference

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954 Parse Server 9.0.0 before 9.10.2-alpha.5 Transactional Batch Request Write Interference

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

EUVD-2026-98658

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...

CVE-2026-109954

Parse Server versions 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 are vulnerable to a race condition (CWE-362) where transactional batch state is shared across concurrent requests. This allows a client's transactional batch request to interfere with other clients' database writes. On Post...

PT-2026-111549

Name of the Vulnerable Software and Affected Versions Parse Server versions 5.4.0 through 8.6.95 Parse Server versions 9.0.0 through 9.10.2-alpha.4 Description Transactional batch state is shared across concurrent requests, allowing a transactional batch request from one client to interfere with...

CVE-2026-109954: Concurrent Execution using Shared Resource with Improper Synchronization

Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alpha.5 shares transactional batch state across concurrent requests, letting any client's transactional batch request interfere with other clients' database writes. On PostgreSQL or MongoDB replica sets and sharded clusters, other clients'...