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TI-2021-08828 Aliases CVE-2021-27306GHSA-vh85-5xw7-5gvq

An improper access control vulnerability in the JWT plugin in Kong Gateway prior to…

Priority LOW 36CWE-706Published · Updated

Key facts

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

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

Summary

An improper access control vulnerability in the JWT plugin in Kong Gateway prior to 2.3.2.0 allows unauthenticated users access to authenticated routes without a valid token JWT.

Why it matters now

EPSS 0.01789 78th 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:konghq:kong_gateway:*:*:*:*:enterprise:*:*:*before 2.3.2.0VulnerableKongHQ
  • cpe:2.3:a:konghq:kong_gateway:*:*:*:*:enterprise:*:*:* Versions before 2.3.2.0 Vulnerable ·KongHQ

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-27306
  2. 2026-10-03 Alias added: GHSA-vh85-5xw7-5gvq

References

Advisory 1

Other 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5

Sources

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