CVE-2026-53726: Authorization Bypass Through User-Controlled Key

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.80 and 9.9.1-alpha.6, a relation query using the $relatedTo operator could read the membership of a Relation field even when that field was hidden from the requesting clie...

CVE-2026-47138: Inefficient Regular Expression Complexity

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.77 and 9.9.1-alpha.1, an unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains...

PT-2026-48960

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.79 Parse Server versions prior to 9.9.1 Description The default file upload extension blocklist can be bypassed by appending a trailing dot to a filename with an extension that would normally be blocked. This...

PT-2026-48962

Name of the Vulnerable Software and Affected Versions Parse Server versions prior to 8.6.80 Parse Server versions prior to 9.9.1-alpha.6 Description A relation query using the $relatedTo operator allows an unauthenticated client to read the membership of a Relation field. This occurs even if the...

CVE-2026-39321

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.6 and 8.6.74, he login endpoint response time differs measurably depending on whether the submitted username or email exists in the database. When a user is not found, the...

CVE-2026-39381

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.7 and 8.6.75, the GET /sessions/me endpoint returns Session fields that the server operator explicitly configured as protected via the protectedFields server option. Any...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-47248 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-47248 Source advisory: SNYK:JS-PARSESERVER-17111546...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-47248 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-47248 Source advisory: OSV:GHSA-8CPH-RGR4-G5VJ...

Information Exposure

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 Information Exposure via the Did you mean ...? suggestions in GraphQL validation-error messages. An attacker can enumerate...

Parse Server: Pre-authentication denial of service via client version header regex backtracking

Impact An unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains adversarial input that triggers polynomial backtracking in a request-header parser. The parsing runs before session authentication and before...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-47138 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-47138 Source advisory: OSV:GHSA-38M6-82C8-4XFM...

GHSA-38M6-82C8-4XFM Parse Server: Pre-authentication denial of service via client version header regex backtracking

Impact An unauthenticated attacker who knows a publicly-known Parse Application ID can submit a single HTTP request whose client SDK version field contains adversarial input that triggers polynomial backtracking in a request-header parser. The parsing runs before session authentication and before...

Regular Expression Denial of Service (ReDoS)

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 Regular Expression Denial of Service ReDoS via the clientSDK parameter in the request-header parser. An attacker can exhaust...

@openinc/parse-server-opendash (>=4.0.0, <=4.0.29) potentially affected by CVE-2026-47138 via parse-server (>=9.6.0-alpha.37, <=9.8.0)

parse-server NPM version =9.6.0-alpha.37, =4.0.0, =4.0.29 Source cves: CVE-2026-47138 Source advisory: SNYK:JS-PARSESERVER-16874023...

BIT-PARSE-2026-43930 Parse Server: MFA SMS one-time password accepted twice under concurrent login

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive valid...

CVE-2026-43930 Parse Server: MFA SMS one-time password accepted twice under concurrent login

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive...

CVE-2026-43930 Parse Server: MFA SMS one-time password accepted twice under concurrent login

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive...

CVE-2026-43930

CVE-2026-43930 affects Parse Server. A race condition in the MFA SMS OTP login path before 8.6.76 and 9.9.0-alpha.2 can allow two concurrent /login requests carrying the same OTP to succeed, producing two valid session tokens. Impact is breaking single-use OTP; attacker must already know the vict...

CVE-2026-43930 Parse Server: MFA SMS one-time password accepted twice under concurrent login

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive...

CVE-2026-43930: Concurrent Execution using Shared Resource with Improper Synchronization

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password OTP login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive...