How severe is CVE-2026-34784?

CVE-2026-34784 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-34784 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34784?

CVE-2026-34784 affects Parseplatform Parse-server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34784?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-34784 have an EU (EUVD) identifier?

Yes. CVE-2026-34784 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17608.

When was CVE-2026-34784 published?

CVE-2026-34784 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-34784

CVE-2026-34784 is a high-severity vulnerability in Parseplatform Parse-server with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.2
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17608
Weakness: CWE-285
Affected product: Parseplatform Parse-server
Published: 2026-03-31
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-34784?: 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.
How severe is CVE-2026-34784?: CVE-2026-34784 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-34784 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34784?: CVE-2026-34784 affects Parseplatform Parse-server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34784?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-34784 have an EU (EUVD) identifier?: Yes. CVE-2026-34784 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17608.
When was CVE-2026-34784 published?: CVE-2026-34784 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*

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