CVE-2026-34373High· 8.8▾ Twilight

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score48/ 100 · Moderate

impact 48.4 · likelihood 0 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Mar 31, 2026

Updated

Jul 24, 2026

CVSS

8.8

Vendor

parseplatform

Product

parse-server

CWE

CWE-346

Depth score

48 · Moderate

EPSS

0.20% · p10

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Jul 29.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 178 days

Mar 31, 2026Published
Disclosed via NVD
Jul 24, 2026Record revised
Last analysed / modified upstream
Jul 29, 2026EPSS first tracked
0.2%
Sep 25, 2026EPSS peak
0.2% → 0.2%

parseplatform CWE-346 #nvd

Affected

parse-server >= 3.5.0, < 8.6.66
parse-server >= 9.0.0, < 9.7.0
parse-server = 9.7.0

Patched in

parse-server 9.7.0

Full technical detail▾

Overview

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 bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly enforces the configured allowOrigin restriction. This issue has been patched in versions 8.6.66 and 9.7.0-alpha.10.

Affected

parse-server >= 3.5.0, < 8.6.66
parse-server >= 9.0.0, < 9.7.0
parse-server = 9.7.0

Remediation

Upgrade past the affected range:

parse-server 9.7.0

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd

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CVE-2026-34373High· 8.8▾ Twilight

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score48/ 100 · Moderate

impact 48.4 · likelihood 0 · exploitation 0

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.

…

Published

Mar 31, 2026

Updated

Jul 24, 2026

CVSS

8.8

Vendor

parseplatform

Product

parse-server

CWE

CWE-346

Depth score

48 · Moderate

EPSS

0.20% · p10

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Jul 29.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 178 days

Mar 31, 2026Published
Disclosed via NVD
Jul 24, 2026Record revised
Last analysed / modified upstream
Jul 29, 2026EPSS first tracked
0.2%
Sep 25, 2026EPSS peak
0.2% → 0.2%

parseplatform CWE-346 #nvd

Affected

parse-server >= 3.5.0, < 8.6.66
parse-server >= 9.0.0, < 9.7.0
parse-server = 9.7.0

Patched in

parse-server 9.7.0

Full technical detail▾

Overview

Affected

parse-server >= 3.5.0, < 8.6.66
parse-server >= 9.0.0, < 9.7.0
parse-server = 9.7.0

Remediation

Upgrade past the affected range:

parse-server 9.7.0

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd