How severe is CVE-2026-30850?

CVE-2026-30850 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-30850 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30850?

CVE-2026-30850 primarily affects Parseplatform Parse-server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-30850?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-30850 have an EU (EUVD) identifier?

Yes. CVE-2026-30850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10170.

When was CVE-2026-30850 published?

CVE-2026-30850 was published on 2026-03-07 and last updated on 2026-06-17.

CVE-2026-30850

CVE-2026-30850 is a medium-severity vulnerability in Parseplatform Parse-server with a CVSS 3.x base score of 5.9. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 6.3
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10170
Weakness: CWE-862
Affected product: Parseplatform Parse-server
Published: 2026-03-07
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 8.6.9 and 9.5.0-alpha.9, the file metadata endpoint (GET /files/:appId/metadata/:filename) does not enforce beforeFind / afterFind file triggers. When these triggers are used as access-control gates, the metadata endpoint bypasses them entirely, allowing unauthorized access to file metadata. This issue has been patched in versions 8.6.9 and 9.5.0-alpha.9.

Frequently asked questions

What is CVE-2026-30850?: Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.9 and 9.5.0-alpha.9, the file metadata endpoint (GET /files/:appId/metadata/:filename) does not enforce beforeFind / afterFind file triggers. When these triggers are used as access-control gates, the metadata endpoint bypasses them entirely, allowing unauthorized access to file metadata. This issue has been patched in versions 8.6.9 and 9.5.0-alpha.9.
How severe is CVE-2026-30850?: CVE-2026-30850 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-30850 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30850?: CVE-2026-30850 primarily affects Parseplatform Parse-server. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-30850?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30850 have an EU (EUVD) identifier?: Yes. CVE-2026-30850 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10170.
When was CVE-2026-30850 published?: CVE-2026-30850 was published on 2026-03-07 and last updated on 2026-06-17.

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-hwx8-q9cg-mqmc

Affected products (10)

cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:-:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha1:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha4:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha5:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha6:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha7:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha8:*:*:*:node.js:*:*

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