CVE-2026-34784

Name: CVE-2026-34784
Creator: NVD / NIST
Published: 2026-03-31T20:16:29.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-34784 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by afterFind trigger authorization logic or built-in validators such as requireUser. This issue has been patched in versions 8.6.71 and 9.7.1-alpha.1.

Metrics

CVSS 3.1

7.5/10

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

CVSS 4.0

8.2/10

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.38%

29.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Parseplatform	Parse-Server	< 8.6.71
Parseplatform	Parse-Server	>= 9.0.0, < 9.7.1

References

https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337Patch
https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22Patch
https://github.com/parse-community/parse-server/pull/10361Issue Tracking, Patch
https://github.com/parse-community/parse-server/pull/10362Issue Tracking, Patch
https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwvMitigation, Vendor Advisory

Timeline

Published: Mar 31, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-34784?

How severe is CVE-2026-34784?

CVE-2026-34784 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-34784?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-34784?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST