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TI-2020-11770 Aliases CVE-2020-14967GHSA-xxxq-chmp-67g4

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js.

Priority MEDIUM 47CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-119 and the CVSS impact.

Summary

An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

Why it matters now

EPSS 0.02327 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed jsrsasign (npm): 8.0.18

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
—jsrsasign (npm)before 8.0.188.0.18Patch availableGHSA-xxxq-chmp-67g4
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • jsrsasign (npm) Vendor— Affected before 8.0.18 Fixed in 8.0.18 Patch available GHSA-xxxq-chmp-67g4

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:*before 8.0.18VulnerableKjur
cpe:2.3:a:netapp:max_data:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
  • cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:* Versions before 8.0.18 Vulnerable ·Kjur
  • cpe:2.3:a:netapp:max_data:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Remediation

  • Fix · GHSA-xxxq-chmp-67g4 jsrsasign (npm) Fixed in 8.0.18 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-14967
  2. 2026-10-03 Alias added: GHSA-xxxq-chmp-67g4

References

Exploit 1

Advisory 6

Other 6

Sources

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