medium6.5
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 transactiona…
Impact
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' acknowledged writes are rolled back if the batch fails, and PostgreSQL transactions can remain open indefinitely, causing subsequent writes to fail.
Affected products
| Product | Affected versions |
|---|---|
| Parse Server 5.4.0 | before 8.6.96 |
| 9.0.0 | before 9.10.2-alpha.5 |
Versions were read from the advisory text. No structured product data has been published for this record yet.