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CVE-2026-309386.9MediumCWE-693

CVE-2026-30938: Parse Server has denylist `requestKeywordDenylist` keyword scan bypass through nested object placement

parse-community · parse-server

Affected: parse-community parse-server · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
40th percentile
050100

Higher than 40% of scored CVEs

6.9MediumCVSS 4.0
LowMedium

DescriptionCVE.org

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.12 and 9.5.1-alpha.1, the requestKeywordDenylist security control can be bypassed by placing any nested object or array before a prohibited keyword in the request payload. This is caused by a logic bug that stops scanning sibling keys after encountering the first nested value. Any custom requestKeywordDenylist entries configured by the developer are equally by-passable using the same technique. All Parse Server deployments are affected. The requestKeywordDenylist is enabled by default. This vulnerability is fixed in 8.6.12 and 9.5.1-alpha.1. Use a Cloud Code beforeSave trigger to validate incoming data for prohibited keywords across all classes.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • parse-community · parse-server< 8.6.12; >= 9.0.0 < 9.5.1-alpha.1

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
March 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-30938 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References