CVE-2021-47987

Parse Server - Arbitrary Code Execution via Malicious Version Tags

State
Published
Severity
7.7 High
Published
Jun 25, 2026
Updated
Jun 26, 2026
Reserved
Jun 21, 2026

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Description

Parse Server before 4.10.0 was affected by a supply chain incident in which incorrect version tags were pushed to the official repository pointing to an unreviewed personal fork of a contributor with write access. No releases were published with these tags; a project was exposed only if it defined a git-based dependency referencing one of the affected tags (for example, parse-server#4.9.3). The code behind the tags was not reviewed or approved, and although no malicious code was identified, the introduction of security vulnerabilities could not be ruled out.

Scores

CVSSScoreVectorSource
4.07.7 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NVulnCheck
3.17.5 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HVulnCheck

Weaknesses

  • CWE-494 Download of Code Without Integrity Check

Affected Products

ProductVersions
parse-serverparse-community
  • before 4.10.0Affected
  • 4.10.0Not affected

References

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