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TI-2022-09454 Aliases CVE-2022-25898GHSA-3fvg-4v2m-98jf

Improper verification of cryptographic signature in jsrsasign

Priority MEDIUM 44CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
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-347.

Summary

The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when JWS or JWT signature with non Base64URL encoding special characters or number escaped characters may be validated as valid by mistake. Workaround: Validate JWS or JWT signature if it has Base64URL and dot safe string before executing JWS.verify() or JWS.verifyJWT() method.

Why it matters now

EPSS 0.01153 67th percentileScored 2026-11-07
Fix Fixed jsrsasign: 10.5.25jsrsasign (npm): 10.5.25

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—jsrsasignbefore 10.5.2510.5.25Patch availableCNA
—jsrsasign (npm)4.8.0 to before 10.5.2510.5.25Patch availableGHSA-3fvg-4v2m-98jf
  • jsrsasign Vendor— Affected before 10.5.25 Fixed in 10.5.25 Patch available CNA
  • jsrsasign (npm) Vendor— Affected 4.8.0 to before 10.5.25 Fixed in 10.5.25 Patch available GHSA-3fvg-4v2m-98jf

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:*4.8.0 to before 10.5.25VulnerableKjur
  • cpe:2.3:a:kjur:jsrsasign:*:*:*:*:*:node.js:*:* Versions 4.8.0 to before 10.5.25 Vulnerable ·Kjur

Remediation

  • Fix · CNA jsrsasign Fixed in 10.5.25
  • Fix · GHSA-3fvg-4v2m-98jf jsrsasign (npm) Fixed in 10.5.25 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-25898
  2. 2026-10-03 Alias added: GHSA-3fvg-4v2m-98jf

References

Patch 1

Advisory 2

Other 2

  • TI-2026-04006 Incorrect numeric conversion in jsrsasign CVSS 4.0HIGH 8.7
  • TI-2026-04002 Infinite loop in jsrsasign CVSS 4.0HIGH 8.7
  • TI-2026-04004 Improper signature verification in jsrsasign CVSS 4.0CRITICAL 9.1
  • TI-2026-04003 Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to… CVSS 4.0CRITICAL 9.3
  • TI-2020-11771 An issue was discovered in the jsrsasign package before 8.0.17 for Node.js. CVSS 3.1CRITICAL 9.8
  • TI-2020-11770 An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. CVSS 3.1CRITICAL 9.8
See all 11 →

Sources

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