How severe is CVE-2021-47986?

CVE-2021-47986 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-47986 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47986?

CVE-2021-47986 primarily affects Parseplatform Parse-server. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-47986?

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-2021-47986 have an EU (EUVD) identifier?

Yes. CVE-2021-47986 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34852.

When was CVE-2021-47986 published?

CVE-2021-47986 was published on 2026-06-25 and last updated on 2026-07-30.

CVE-2021-47986

CVE-2021-47986 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-494.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.7
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-34852
Weakness: CWE-494
Affected product: Parseplatform Parse-server
Published: 2026-06-25
Last modified: 2026-07-30

Description

Parse Server before 4.10.0 contains a supply chain vulnerability where incorrect version tags were pushed to the repository linking to unreviewed code in a personal fork. Attackers could exploit this by specifying affected version tags in dependency declarations to execute unreviewed and potentially malicious code.

Frequently asked questions

What is CVE-2021-47986?: Parse Server before 4.10.0 contains a supply chain vulnerability where incorrect version tags were pushed to the repository linking to unreviewed code in a personal fork. Attackers could exploit this by specifying affected version tags in dependency declarations to execute unreviewed and potentially malicious code.
How severe is CVE-2021-47986?: CVE-2021-47986 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-47986 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47986?: CVE-2021-47986 primarily affects Parseplatform Parse-server. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-47986?: 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-2021-47986 have an EU (EUVD) identifier?: Yes. CVE-2021-47986 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34852.
When was CVE-2021-47986 published?: CVE-2021-47986 was published on 2026-06-25 and last updated on 2026-07-30.

References

Affected products (30)

cpe:2.3:a:parseplatform:parse-server:4.0.0:beta1:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.0:beta2:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.0:beta3:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.0:beta4:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.0:beta5:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.0:beta6:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.3:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.4:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.6:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.7:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.8:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.9:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.10:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.11:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.12:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.13:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.0.14:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.6.0:-:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.6.0:beta:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.7.0:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.0:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.1:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.2:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.3:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.4:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.8.5:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.9.0:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.9.1:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.9.2:*:*:*:*:node.js:*:*
cpe:2.3:a:parseplatform:parse-server:4.9.3:*:*:*:*:node.js:*:*

More vulnerabilities in Parseplatform Parse-server

CVE-2026-30966 — Critical (CVSS 10.0): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to…
CVE-2024-27298 — Critical (CVSS 10.0): parse-server is a Parse Server for Node.js / Express. This vulnerability allows SQL injection when Parse Server is…
CVE-2022-24760 — Critical (CVSS 10.0): Parse Server is an open source http web server backend. In versions prior to 4.10.7 there is a Remote Code Execution…
CVE-2026-32248 — Critical (CVSS 9.8): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to…
CVE-2026-31871 — Critical (CVSS 9.8): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to…
CVE-2026-31856 — Critical (CVSS 9.8): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. A SQL injection…

All CVEs affecting Parseplatform Parse-server →

Other CWE-494 vulnerabilities

CVE-2020-1595 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from…
CVE-2020-1210 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source…
CVE-2026-30612 — Critical (CVSS 9.8): An issue in Time4 Popcorn for Windows <= 6.2.1.18 and Time4Popcorn for MacOS <= 6.2.1.17 and Time4Popcorn for Android…
CVE-2026-42248 — Critical (CVSS 9.8): Ollama for Windows does not perform integrity or authenticity verification of downloaded update executables. Unlike…
CVE-2026-34841 — Critical (CVSS 9.8): Bruno is an open source IDE for exploring and testing APIs. Prior to 3.2.1, Bruno was affected by a supply chain attack…
CVE-2026-3000 — Critical (CVSS 9.8): IDExpert Windows Logon Agent developed by Changing has a Remote Code Execution vulnerability, allowing unauthenticated…

Browse all CWE-494 vulnerabilities →