CVE-2021-47987

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
2.2%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
Patch available. Sources: github.
generic

Parse Server - Arbitrary Code Execution via Malicious Version Tags | Advisories | VulnCheck

https://www.vulncheck.com/advisories/parse-server-arbitrary-code-execution-via-malicious-version-tags
github Patch Available

Incorrect version tags linked to external repository · Advisory · parse-community/parse-server · GitHub

https://github.com/parse-community/parse-server/security/advisories/GHSA-593v-wcqx-hq2w

Vendor Advisories for CVE-2021-47987(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 36× in last 7d / 63× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 22:37 UTCEG score recompute
  2. 2026-07-06 22:37 UTCGHSA enrichment
  3. 2026-07-06 16:25 UTCEPSS rescore
  4. 2026-07-06 16:25 UTCEPSS rescore
  5. 2026-07-06 11:13 UTCEG score recompute
  6. 2026-07-06 11:13 UTCGHSA enrichment
  7. 2026-07-06 02:21 UTCEPSS rescore
  8. 2026-07-06 02:21 UTCEPSS rescore
  9. 2026-07-05 23:22 UTCEG score recompute
  10. 2026-07-05 23:22 UTCGHSA enrichment
  11. 2026-07-05 11:58 UTCEG score recompute
  12. 2026-07-05 11:57 UTCGHSA enrichment
  13. 2026-07-05 02:28 UTCEPSS rescore
  14. 2026-07-05 02:28 UTCEPSS rescore
  15. 2026-07-05 00:34 UTCEG score recompute
  16. 2026-07-05 00:34 UTCGHSA enrichment
  17. 2026-07-04 13:09 UTCEG score recompute
  18. 2026-07-04 13:09 UTCGHSA enrichment
  19. 2026-07-04 01:45 UTCEG score recompute
  20. 2026-07-04 01:45 UTCGHSA enrichment
  21. 2026-07-03 14:20 UTCEG score recompute
  22. 2026-07-03 14:20 UTCGHSA enrichment
  23. 2026-07-03 02:57 UTCEG score recompute
  24. 2026-07-03 02:56 UTCGHSA enrichment
  25. 2026-07-02 15:32 UTCEG score recompute
Show 38 more
  1. 2026-07-02 15:32 UTCGHSA enrichment
  2. 2026-07-02 04:07 UTCEG score recompute
  3. 2026-07-02 04:07 UTCGHSA enrichment
  4. 2026-07-01 16:44 UTCEG score recompute
  5. 2026-07-01 16:44 UTCGHSA enrichment
  6. 2026-07-01 15:04 UTCEPSS rescore
  7. 2026-07-01 05:19 UTCEG score recompute
  8. 2026-07-01 05:19 UTCGHSA enrichment
  9. 2026-06-30 23:20 UTCEPSS rescore
  10. 2026-06-30 17:55 UTCEG score recompute
  11. 2026-06-30 17:55 UTCGHSA enrichment
  12. 2026-06-30 06:31 UTCEG score recompute
  13. 2026-06-30 06:31 UTCGHSA enrichment
  14. 2026-06-29 19:07 UTCEG score recompute
  15. 2026-06-29 19:07 UTCGHSA enrichment
  16. 2026-06-29 14:04 UTCEPSS rescore
  17. 2026-06-29 14:04 UTCEPSS rescore
  18. 2026-06-29 07:43 UTCEG score recompute
  19. 2026-06-29 07:43 UTCGHSA enrichment
  20. 2026-06-28 20:19 UTCEG score recompute
  21. 2026-06-28 20:19 UTCGHSA enrichment
  22. 2026-06-28 14:05 UTCEPSS rescore
  23. 2026-06-28 08:54 UTCEG score recompute
  24. 2026-06-28 08:54 UTCGHSA enrichment
  25. 2026-06-28 04:54 UTCEPSS rescore
  26. 2026-06-28 04:54 UTCEPSS rescore
  27. 2026-06-27 21:31 UTCEG score recompute
  28. 2026-06-27 21:31 UTCGHSA enrichment
  29. 2026-06-27 10:07 UTCEG score recompute
  30. 2026-06-27 10:07 UTCGHSA enrichment
  31. 2026-06-27 03:07 UTCEPSS rescore
  32. 2026-06-27 03:06 UTCEPSS rescore
  33. 2026-06-26 22:43 UTCEG score recompute
  34. 2026-06-26 22:43 UTCGHSA enrichment
  35. 2026-06-26 11:15 UTCEG score recompute
  36. 2026-06-26 11:15 UTCGHSA enrichment
  37. 2026-06-25 23:51 UTCEG score recompute
  38. 2026-06-25 23:50 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2021-47987?
CVE-2021-47987 is a high vulnerability published on June 25, 2026. 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…
When was CVE-2021-47987 disclosed?
CVE-2021-47987 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47987 actively exploited?
CVE-2021-47987 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-47987?
CVE-2021-47987 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-47987?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47987, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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