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 in…
Published: 2026-10-13 · CVSS: 8.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7