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TI-2021-11885 Aliases CVE-2021-31897GHSA-mrcx-3pvh-cm2f

In JetBrains WebStorm before 2021.1, code execution without user confirmation was possible for untrusted projects.

Priority MEDIUM 45Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

In JetBrains WebStorm before 2021.1, code execution without user confirmation was possible for untrusted projects.

Why it matters now

EPSS 0.01541 75th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jetbrains:webstorm:*:*:*:*:*:*:*:*before 2021.1VulnerableJetBrains
  • cpe:2.3:a:jetbrains:webstorm:*:*:*:*:*:*:*:* Versions before 2021.1 Vulnerable ·JetBrains

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31897
  2. 2026-10-03 Alias added: GHSA-mrcx-3pvh-cm2f

References

Advisory 2

  • TI-2024-24589 Insufficiently protected credentials in JetBrains IntelliJ IDEA CVSS 3.1CRITICAL 9.3
  • TI-2021-20971 JetBrains IntelliJ IDEA 2021.3.1 Preview, IntelliJ IDEA 2021.3.1 RC, PyCharm Professional… CVSS 3.1CRITICAL 9.8
  • TI-2026-46335 In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting… CVSS 3.1HIGH 8.4
  • TI-2026-46334 In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting… CVSS 3.1HIGH 8.4
  • TI-2026-46333 In JetBrains WebStorm before 2026.2 arbitrary code execution was possible before granting… CVSS 3.1HIGH 8.4
  • TI-2026-46336 In JetBrains WebStorm before 2026.2 arbitrary code execution was possible via a project-supplied linter configuration CVSS 3.1HIGH 7.8
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences