CVE-2026-34373: Origin Validation Error

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This...

CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

UBUNTU-CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

CVE-2026-21717

CVE-2026-21717 affects multiple Node.js releases (nodejs20, nodejs22, nodejs24, nodejs25) with the root cause in V8 string hashing causing integer-like strings to hash to their numeric value, enabling hash collisions that can degrade Node.js process performance. Public details show nodejs24 is af...

CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

CVE-2026-21717

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the...

GraphQL API endpoint ignores CORS origin restriction

Impact The GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly...

GHSA-Q3P6-G7C4-829C GraphQL API endpoint ignores CORS origin restriction

Impact The GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.10) potentially affected by CVE-2026-34373 via parse-server (>=9.6.0-alpha.37, <=9.6.1)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.10 Source cves: CVE-2026-34373 Source advisory: SNYK:JS-PARSESERVER-15855397...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.10) potentially affected by CVE-2026-34373 via parse-server (>=9.6.0-alpha.37, <=9.6.1)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.10 Source cves: CVE-2026-34373 Source advisory: OSV:GHSA-Q3P6-G7C4-829C...

Origin Validation Error

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 Origin Validation Error via the GraphQL API endpoint ignoring the configured CORS allowOrigin restriction. An attacker can...

@bigegg/parse-server-schema-config (>=1.0.5, <=1.0.10), @kontaa/subgraph (>=1.0.1, <=1.2.3) +8 more potentially affected by CVE-2026-34373 via parse-server (>=3.10.0, <=7.5.4)

parse-server NPM version =3.10.0, =1.0.5, =1.0.1, =1.2.1, =2.4.46, =1.0.0, =1.0.1, =1.0.0, =1.0.0, =1.0.0, =1.1.0 - servable-publishable 1.1.0 Source cves: CVE-2026-34373 Source advisory: SNYK:JS-PARSESERVER-15855397...

@bigegg/parse-server-schema-config (>=1.0.5, <=1.0.10), @kontaa/subgraph (>=1.0.1, <=1.2.3) +8 more potentially affected by CVE-2026-34373 via parse-server (>=3.10.0, <=7.5.4)

parse-server NPM version =3.10.0, =1.0.5, =1.0.1, =1.2.1, =2.4.46, =1.0.0, =1.0.1, =1.0.0, =1.0.0, =1.0.0, =1.1.0 - servable-publishable 1.1.0 Source cves: CVE-2026-34373 Source advisory: OSV:GHSA-Q3P6-G7C4-829C...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.10) potentially affected by CVE-2026-34363 via parse-server (>=9.6.0-alpha.37, <=9.6.1)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.10 Source cves: CVE-2026-34363 Source advisory: OSV:GHSA-M983-V2FF-WQ65...

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 in the handling of concurrent LiveQuery subscribers due to shared mutable state. An attacker can access...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.10) potentially affected by CVE-2026-34363 via parse-server (>=9.6.0-alpha.37, <=9.6.1)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.10 Source cves: CVE-2026-34363 Source advisory: SNYK:JS-PARSESERVER-15855398...

LiveQuery protected field leak via shared mutable state across concurrent subscribers

Impact When multiple clients subscribe to the same class via LiveQuery, the event handlers process each subscriber concurrently using shared mutable objects. The sensitive data filter modifies these shared objects in-place, so when one subscriber's filter removes a protected field, subsequent...

GHSA-M983-V2FF-WQ65 LiveQuery protected field leak via shared mutable state across concurrent subscribers

Impact When multiple clients subscribe to the same class via LiveQuery, the event handlers process each subscriber concurrently using shared mutable objects. The sensitive data filter modifies these shared objects in-place, so when one subscriber's filter removes a protected field, subsequent...

PT-2026-29167

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.66 Parse Server versions prior to 9.7.0-alpha.10 Description Parse Server, an open source backend deployable on Node.js infrastructures, has an issue where the GraphQL API endpoint does not enforce the...