What is CVE-2021-27306?

CVE-2021-27306 is a high-severity vulnerability in Konghq Kong Gateway, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 7.5/10. Published 2021-03-18.

How severe is CVE-2021-27306?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-27306 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Konghq Kong Gateway

CVE-2021-27306

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.

EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Konghq Kong_gateway
N/a — versions n/a

Weakness classification (CWE)

CWE-706 — Use of Incorrectly-Resolved Name or Reference

Public proof-of-concept exploits

starnightcyber/vul-info-collect

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-27306?: CVE-2021-27306 is a high-severity vulnerability in Konghq Kong Gateway, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 7.5/10. Published 2021-03-18.
How severe is CVE-2021-27306?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-27306 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.